The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6435-1 advisory.

    It was discovered that OpenSSL incorrectly handled excessively large Diffie-Hellman parameters. An     attacker could possibly use this issue to cause a denial of service. (CVE-2023-3446)

    Bernd Edlinger discovered that OpenSSL incorrectly handled excessively large Diffie-Hellman parameters. An     attacker could possibly use this issue to cause a denial of service. (CVE-2023-3817)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7877 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS)     protocols, as well as a full-strength general-purpose cryptography library.

    Security Fix(es):

    * openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)

    * OpenSSL: Excessive time spent checking DH q parameter value (CVE-2023-3817)

    * openssl: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or     parameters may be very slow (CVE-2023-5678)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2023:7877 advisory.

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the -check     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

  - Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or     parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to     generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),     DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may     experience long delays. Where the key or parameters that are being checked have been obtained from an     untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks     (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable     for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an     excessively large P, it doesn't check for an excessively large Q. An application that calls     DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source     could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_pub_key_ex(),     EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line     application when using the -pubcheck option, as well as the OpenSSL genpkey command line application.
    The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers     are not affected by this issue. (CVE-2023-5678)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check'     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the shim packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check'     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A security vulnerability has been identified in all supported versions of OpenSSL related to the     verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit     this vulnerability by creating a malicious certificate chain that triggers exponential use of     computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy     processing is disabled by default but can be enabled by passing the `-policy' argument to the command line     utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. (CVE-2023-0464)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check'     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the shim package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check'     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

  - Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or     parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to     generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),     DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may     experience long delays. Where the key or parameters that are being checked have been obtained from an     untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks     (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable     for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an     excessively large P, it doesn't check for an excessively large Q. An application that calls     DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source     could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_pub_key_ex(),     EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line     application when using the '-pubcheck' option, as well as the OpenSSL genpkey command line application.
    The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers     are not affected by this issue. (CVE-2023-5678)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-2447 advisory.

    - POLY1305 MAC implementation corrupts vector registers on PowerPC (CVE-2023-6129)       Resolves: RHEL-21151
    - Excessive time spent checking invalid RSA public keys (CVE-2023-6237)       Resolves: RHEL-21654

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0093 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2022-36763:
    EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to trigger a     heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a     compromise of confidentiality, integrity, and/or availability.

    CVE-2022-36764:
    EDK2 is susceptible to a vulnerability in the Tcg2MeasurePeImage() function, allowing a user to trigger a     heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a     compromise of confidentiality, integrity, and/or availability.

    CVE-2022-36765:
    EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a integer     overflow to buffer overflow via a local network. Successful exploitation of this vulnerability may result     in a compromise of confidentiality, integrity, and/or availability.

    CVE-2023-3446:
    Issue summary: Checking excessively long DH keys or parameters may be very slow.
    Impact summary: Applications that use the functions DH_check(), DH_check_ex()     or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long     delays. Where the key or parameters that are being checked have been obtained     from an untrusted source this may lead to a Denial of Service.
    The function DH_check() performs various checks on DH parameters. One of those     checks confirms that the modulus ('p' parameter) is not too large. Trying to use     a very large modulus is slow and OpenSSL will not normally use a modulus which     is over 10,000 bits in length.
    However the DH_check() function checks numerous aspects of the key or parameters     that have been supplied. Some of those checks use the supplied modulus value     even if it has already been found to be too large.
    An application that calls DH_check() and supplies a key or parameters obtained     from an untrusted source could be vulernable to a Denial of Service attack.
    The function DH_check() is itself called by a number of other OpenSSL functions.
    An application calling any of those other functions may similarly be affected.
    The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option.
    The OpenSSL SSL/TLS implementation is not affected by this issue.
    The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

    CVE-2023-45229:
    EDK2's Network Package is susceptible to an out-of-bounds read     vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Confidentiality.

    CVE-2023-45230:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in     DHCPv6 client. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

    CVE-2023-45231:
    EDK2's Network Package is susceptible to an out-of-bounds read     vulnerability when processing Neighbor Discovery Redirect message. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Confidentiality.

    CVE-2023-45232:
    EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in     the Destination Options header of IPv6. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Availability.

    CVE-2023-45233:
    EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the     Destination Options header of IPv6. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Availability.

    CVE-2023-45234:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers     option from a DHCPv6 Advertise message. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

    CVE-2023-45235:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability when     handling Server ID option     from a DHCPv6 proxy Advertise message. This     vulnerability can be exploited by an attacker to gain unauthorized     access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7622 advisory.

    Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web     applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster),     the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.

    This release of Red Hat JBoss Web Server 5.7.7 serves as a replacement for Red Hat JBoss Web Server 5.7.6.
    This release includes bug fixes, enhancements and component upgrades, which are documented in the Release     Notes linked to in the References section.

    Security Fix(es):

    * jbcs-httpd24-openssl: OpenSSL: Excessive time spent checking DH q parameter value (CVE-2023-3817)
    * openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)
    * openssl: Certificate policy check not enabled (CVE-2023-0466)
    * openssl: Invalid certificate policies in leaf certificates are silently ignored (CVE-2023-0465)
    * openssl: Denial of service by excessive resource usage in verifying X509 policy constraints     (CVE-2023-0464)
    * openssl: Possible DoS translating ASN.1 object identifiers (CVE-2023-2650)
    * tomcat: Open Redirect vulnerability in FORM authentication (CVE-2023-41080)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Issue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be     very slow. Impact summary: Applications that use OBJ_obj2txt() directly, or use any of the OpenSSL     subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message size limit may experience notable to     very long delays when processing those messages, which may lead to a Denial of Service. An OBJECT     IDENTIFIER is composed of a series of numbers - sub-identifiers - most of which have no size limit.
    OBJ_obj2txt() may be used to translate an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the     OpenSSL type ASN1_OBJECT) to its canonical numeric text form, which are the sub-identifiers of the OBJECT     IDENTIFIER in decimal form, separated by periods. When one of the sub-identifiers in the OBJECT IDENTIFIER     is very large (these are sizes that are seen as absurdly large, taking up tens or hundreds of KiBs), the     translation to a decimal number in text may take a very long time. The time complexity is O(n^2) with 'n'     being the size of the sub-identifiers in bytes (*). With OpenSSL 3.0, support to fetch cryptographic     algorithms using names / identifiers in string form was introduced. This includes using OBJECT IDENTIFIERs     in canonical numeric text form as identifiers for fetching algorithms. Such OBJECT IDENTIFIERs may be     received through the ASN.1 structure AlgorithmIdentifier, which is commonly used in multiple protocols to     specify what cryptographic algorithm should be used to sign or verify, encrypt or decrypt, or digest     passed data. Applications that call OBJ_obj2txt() directly with untrusted data are affected, with any     version of OpenSSL. If the use is for the mere purpose of display, the severity is considered low. In     OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS. It also impacts     anything that processes X.509 certificates, including simple things like verifying its signature. The     impact on TLS is relatively low, because all versions of OpenSSL have a 100KiB limit on the peer's     certificate chain. Additionally, this only impacts clients, or servers that have explicitly enabled client     authentication. In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects, such as X.509     certificates. This is assumed to not happen in such a way that it would cause a Denial of Service, so     these versions are considered not affected by this issue in such a way that it would be cause for concern,     and the severity is therefore considered low. (CVE-2023-2650)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check'     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue. (CVE-2023-3817)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0912 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-1255:
    A security vulnerability has been identified in all supported versions of OpenSSL related to the     verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit     this vulnerability by creating a malicious certificate chain that triggers exponential use of     computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy     processing is disabled by default but can be enabled by passing the `-policy' argument to the command line     utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

    CVE-2023-3817:
    The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy     check when doing certificate verification. However the implementation of the function does not enable the     check which allows certificates with invalid or incorrect policies to pass the certificate verification.
    As suddenly enabling the policy check could break existing deployments it was decided to keep the existing     behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to     perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the     policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument.
    Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.

    CVE-2023-5678:
    Applications that use a non-default option when verifying certificates may be vulnerable to an attack from     a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are     silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A     malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent     policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled     by passing the `-policy' argument to the command line utilities or by calling the     `X509_VERIFY_PARAM_set1_policies()' function.

    CVE-2023-2975:
    Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that     could cause it to read past the input buffer, leading to a crash. Impact summary: Applications that use     the AES-XTS algorithm on the 64 bit ARM platform can crash in rare circumstances. The AES-XTS algorithm is     usually used for disk encryption. The AES-XTS cipher decryption implementation for 64 bit ARM platform     will read past the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16 byte blocks, e.g.
    144 bytes or 1024 bytes. If the memory after the ciphertext buffer is unmapped, this will trigger a crash     which results in a denial of service. If an attacker can control the size and location of the ciphertext     buffer being decrypted by an application using AES-XTS on 64 bit ARM, the application is affected. This is     fairly unlikely making this issue a Low severity one.

    CVE-2023-3446:
    Issue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be     very slow. Impact summary: Applications that use OBJ_obj2txt() directly, or use any of the OpenSSL     subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message size limit may experience notable to     very long delays when processing those messages, which may lead to a Denial of Service. An OBJECT     IDENTIFIER is composed of a series of numbers - sub-identifiers - most of which have no size limit.
    OBJ_obj2txt() may be used to translate an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the     OpenSSL type ASN1_OBJECT) to its canonical numeric text form, which are the sub-identifiers of the OBJECT     IDENTIFIER in decimal form, separated by periods. When one of the sub-identifiers in the OBJECT IDENTIFIER     is very large (these are sizes that are seen as absurdly large, taking up tens or hundreds of KiBs), the     translation to a decimal number in text may take a very long time. The time complexity is O(n^2) with 'n'     being the size of the sub-identifiers in bytes (*). With OpenSSL 3.0, support to fetch cryptographic     algorithms using names / identifiers in string form was introduced. This includes using OBJECT IDENTIFIERs     in canonical numeric text form as identifiers for fetching algorithms. Such OBJECT IDENTIFIERs may be     received through the ASN.1 structure AlgorithmIdentifier, which is commonly used in multiple protocols to     specify what cryptographic algorithm should be used to sign or verify, encrypt or decrypt, or digest     passed data. Applications that call OBJ_obj2txt() directly with untrusted data are affected, with any     version of OpenSSL. If the use is for the mere purpose of display, the severity is considered low. In     OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS. It also impacts     anything that processes X.509 certificates, including simple things like verifying its signature. The     impact on TLS is relatively low, because all versions of OpenSSL have a 100KiB limit on the peer's     certificate chain. Additionally, this only impacts clients, or servers that have explicitly enabled client     authentication. In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects, such as X.509     certificates. This is assumed to not happen in such a way that it would cause a Denial of Service, so     these versions are considered not affected by this issue in such a way that it would be cause for concern,     and the severity is therefore considered low.

    CVE-2023-0466:
    Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated     data entries which are unauthenticated as a consequence. Impact summary: Applications that use the AES-SIV     algorithm and want to authenticate empty data entries as associated data can be misled by removing, adding     or reordering such empty entries as these are ignored by the OpenSSL implementation. We are currently     unaware of any such applications. The AES-SIV algorithm allows for authentication of multiple associated     data entries along with the encryption. To authenticate empty data the application has to call     EVP_EncryptUpdate() (or EVP_CipherUpdate()) with NULL pointer as the output buffer and 0 as the input     buffer length. The AES-SIV implementation in OpenSSL just returns success for such a call instead of     performing the associated data authentication operation. The empty data thus will not be authenticated. As     this issue does not affect non-empty associated data authentication and we expect it to be rare for an     application to use empty associated data entries this is qualified as Low severity issue.

    CVE-2023-0465:
    Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

    CVE-2023-5363:
    Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter     value can also trigger an overly long computation during some of these checks. A correct q value, if     present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if     q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an     untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the -check     option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS     providers are not affected by this issue.

    CVE-2023-2650:
    Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or     parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to     generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),     DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may     experience long delays. Where the key or parameters that are being checked have been obtained from an     untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks     (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable     for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an     excessively large P, it doesn't check for an excessively large Q. An application that calls     DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source     could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also     called by a number of other OpenSSL functions. An application calling any of those other functions may     similarly be affected. The other functions affected by this are DH_check_pub_key_ex(),     EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line     application when using the -pubcheck option, as well as the OpenSSL genpkey command line application.
    The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers     are not affected by this issue.

    CVE-2023-0464:
    Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths.
    This can lead to potential truncation or overruns during the initialisation of some symmetric ciphers.
    Impact summary: A truncation in the IV can result in non-uniqueness, which could result in loss of     confidentiality for some cipher modes. When calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or     EVP_CipherInit_ex2() the provided OSSL_PARAM array is processed after the key and IV have been     established. Any alterations to the key length, via the keylen parameter or the IV length, via the     ivlen parameter, within the OSSL_PARAM array will not take effect as intended, potentially causing     truncation or overreading of these values. The following ciphers and cipher modes are impacted: RC2, RC4,     RC5, CCM, GCM and OCB. For the CCM, GCM and OCB cipher modes, truncation of the IV can result in loss of     confidentiality. For example, when following NIST's SP 800-38D section 8.2.1 guidance for constructing a     deterministic IV for AES in GCM mode, truncation of the counter portion could lead to IV reuse. Both     truncations and overruns of the key and overruns of the IV will produce incorrect results and could, in     some cases, trigger a memory exception. However, these issues are not currently assessed as security     critical. Changing the key and/or IV lengths is not considered to be a common operation and the vulnerable     API was recently introduced. Furthermore it is likely that application developers will have spotted this     problem during testing since decryption would fail unless both peers in the communication were similarly     vulnerable. For these reasons we expect the probability of an application being vulnerable to this to be     quite low. However if an application is vulnerable then this issue is considered very serious. For these     reasons we have assessed this issue as Moderate severity overall. The OpenSSL SSL/TLS implementation is     not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this because the     issue lies outside of the FIPS provider boundary. OpenSSL 3.1 and 3.0 are vulnerable to this issue.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2502 advisory.

    A null pointer dereference flaw was found in openssl. A remote attacker, able to control the arguments of     the GENERAL_NAME_cmp function, could cause the application, compiled with openssl to crash resulting in a     denial of service. The highest threat from this vulnerability is to system availability. (CVE-2020-1971)

    Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument     in some cases where the input length is close to the maximum permissible length for an integer on the     platform. In such cases the return value from the function call will be 1 (indicating success), but the     output length value will be negative. This could cause applications to behave incorrectly or crash.
    (CVE-2021-23840)

    The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based     on the issuer and serial number data contained within an X509 certificate. However it fails to correctly     handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is     maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a     potential denial of service attack. (CVE-2021-23841)

    A flaw was found in openssl. A server crash and denial of service attack could occur if a client sends a     TLSv1.2 renegotiation ClientHello and omits the signature_algorithms extension but includes a     signature_algorithms_cert extension. The highest threat from this vulnerability is to system availability.
    (CVE-2021-3449)

    A flaw was found in openssl. The flag that enables additional security checks of certificates present in a     certificate chain was not enabled allowing a confirmation step to verify that certificates in the chain     are valid CA certificates is bypassed. The highest threat from this vulnerability is to data     confidentiality and integrity. (CVE-2021-3450)

    It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to     force an application into calling openssl function with a specially crafted, non-NUL terminated string to     deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service     attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data     confidentiality and system availability. (CVE-2021-3712)

    The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop     forever for non-prime moduli. Internally this function is used when parsing certificates that contain     elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point     encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has     invalid explicit curve parameters. Since certificate parsing happens prior to verification of the     certificate signature, any process that parses an externally supplied certificate may thus be subject to a     denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they     can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients     consuming server certificates - TLS servers consuming client certificates - Hosting providers taking     certificates or private keys from customers - Certificate authorities parsing certification requests from     subscribers - Anything else which parses ASN.1 elliptic curve parameters Also any other applications that     use the BN_mod_sqrt() where the attacker can control the parameter values are vulnerable to this DoS     issue. In the OpenSSL 1.0.2 version the public key is not parsed during initial parsing of the certificate     which makes it slightly harder to trigger the infinite loop. However any operation which requires the     public key from the certificate will trigger the infinite loop. In particular the attacker can use a self-     signed certificate to trigger the loop during verification of the certificate signature. This issue     affects OpenSSL versions 1.0.2, 1.1.1 and 3.0. It was addressed in the releases of 1.1.1n and 3.0.2 on the     15th March 2022. Fixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1). Fixed in OpenSSL 1.1.1n (Affected     1.1.1-1.1.1m). Fixed in OpenSSL 1.0.2zd (Affected 1.0.2-1.0.2zc). (CVE-2022-0778) (CVE-2022-0778)

    The c_rehash script does not properly sanitise shell metacharacters to prevent command injection. This     script is distributed by some operating systems in a manner where it is automatically executed. On such     operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of     the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool.
    Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2). Fixed in OpenSSL 1.1.1o (Affected 1.1.1-1.1.1n).
    Fixed in OpenSSL 1.0.2ze (Affected 1.0.2-1.0.2zd). (CVE-2022-1292)

    A flaw was found in OpenSSL. The issue in CVE-2022-1292 did not find other places in the `c_rehash` script     where it possibly passed the file names of certificates being hashed to a command executed through the     shell. Some operating systems distribute this script in a manner where it is automatically executed. On     these operating systems, this flaw allows an attacker to execute arbitrary commands with the privileges of     the script. (CVE-2022-2068)

    AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt     the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was     preexisting in the memory that wasn't written. In the special case of in place encryption, sixteen bytes     of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and     DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q     (Affected 1.1.1-1.1.1p). (CVE-2022-2097)

    A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient     to recover a ciphertext across a network in a Bleichenbacher style attack. To achieve a successful     decryption, an attacker would have to be able to send a very large number of trial messages for     decryption. This issue affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE. (CVE-2022-4304)

    The function PEM_read_bio_ex() reads a PEM file from a BIO and parses anddecodes the name (e.g.
    CERTIFICATE), any header data and the payload data.If the function succeeds then the name_out,     header and data arguments arepopulated with pointers to buffers containing the relevant decoded data.
    Thecaller is responsible for freeing those buffers. It is possible to construct aPEM file that results in     0 bytes of payload data. In this case PEM_read_bio_ex()will return a failure code but will populate the     header argument with a pointerto a buffer that has already been freed. If the caller also frees this     bufferthen a double free will occur. This will most likely lead to a crash. Thiscould be exploited by an     attacker who has the ability to supply malicious PEMfiles for parsing to achieve a denial of service     attack.

    The functions PEM_read_bio() and PEM_read() are simple wrappers aroundPEM_read_bio_ex() and therefore     these functions are also directly affected.

    These functions are also called indirectly by a number of other OpenSSLfunctions including     PEM_X509_INFO_read_bio_ex() andSSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL     internaluses of these functions are not vulnerable because the caller does not free theheader argument if     PEM_read_bio_ex() returns a failure code. These locationsinclude the PEM_read_bio_TYPE() functions as well     as the decoders introduced inOpenSSL 3.0.

    The OpenSSL asn1parse command line application is also impacted by this issue. (CVE-2022-4450)

    A use-after-free vulnerability was found in OpenSSL's BIO_new_NDEF function. The public API function     BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally     by OpenSSL to support the SMIME, CMS, and PKCS7 streaming capabilities, but it may also be called directly     by end-user applications. The function receives a BIO from the caller, prepends a new BIO_f_asn1 filter     BIO onto the front of it to form a BIO chain, and then returns the new head of the BIO chain to the     caller. Under certain conditions. For example, if a CMS recipient public key is invalid, the new filter     BIO is freed, and the function returns a NULL result indicating a failure. However, in this case, the BIO     chain is not properly cleaned up, and the BIO passed by the caller still retains internal pointers to the     previously freed filter BIO. If the caller then calls BIO_pop() on the BIO, a use-after-free will occur,     possibly resulting in a crash. (CVE-2023-0215)

    A type confusion vulnerability was found in OpenSSL when OpenSSL X.400 addresses processing inside an     X.509 GeneralName. When CRL checking is enabled (for example, the application sets the     X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a     memcmp call, enabling them to read memory contents or cause a denial of service. In most cases, the attack     requires the attacker to provide both the certificate chain and CRL, of which neither needs a valid     signature. If the attacker only controls one of these inputs, the other input must already contain an     X.400 address as a CRL distribution point, which is uncommon. In this case, this vulnerability is likely     only to affect applications that have implemented their own functionality for retrieving CRLs over a     network. (CVE-2023-0286)

    A security vulnerability has been identified in all supported versions of OpenSSL related to the     verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit     this vulnerability by creating a malicious certificate chain that triggers exponential use of     computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy     processing is disabled by default but can be enabled by passing the `-policy' argument to the command line     utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. (CVE-2023-0464)

    Applications that use a non-default option when verifying certificates may be vulnerable to an attack from     a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are     silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A     malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent     policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled     by passing the `-policy' argument to the command line utilities or by calling the     `X509_VERIFY_PARAM_set1_policies()' function. (CVE-2023-0465)

    The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy     check when doing certificate verification. However the implementation of the function does not enable the     check which allows certificates with invalid or incorrect policies to pass the certificate verification.
    As suddenly enabling the policy check could break existing deployments it was decided to keep the existing     behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to     perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the     policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument.
    Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.
    (CVE-2023-0466)

    Issue summary: Processing some specially crafted ASN.1 object identifiers ordata containing them may be     very slow.

    Impact summary: Applications that use OBJ_obj2txt() directly, or use any ofthe OpenSSL subsystems OCSP,     PKCS7/SMIME, CMS, CMP/CRMF or TS with no messagesize limit may experience notable to very long delays when     processing thosemessages, which may lead to a Denial of Service.

    An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -most of which have no size     limit.  OBJ_obj2txt() may be used to translatean ASN.1 OBJECT IDENTIFIER given in DER encoding form (using     the OpenSSLtype ASN1_OBJECT) to its canonical numeric text form, which are thesub-identifiers of the     OBJECT IDENTIFIER in decimal form, separated byperiods.

    When one of the sub-identifiers in the OBJECT IDENTIFIER is very large(these are sizes that are seen as     absurdly large, taking up tens or hundredsof KiBs), the translation to a decimal number in text may take a     very longtime.  The time complexity is O(n^2) with 'n' being the size of thesub-identifiers in bytes (*).

    With OpenSSL 3.0, support to fetch cryptographic algorithms using names /identifiers in string form was     introduced.  This includes using OBJECTIDENTIFIERs in canonical numeric text form as identifiers for     fetchingalgorithms.

    Such OBJECT IDENTIFIERs may be received through the ASN.1 structureAlgorithmIdentifier, which is commonly     used in multiple protocols to specifywhat cryptographic algorithm should be used to sign or verify,     encrypt ordecrypt, or digest passed data.

    Applications that call OBJ_obj2txt() directly with untrusted data areaffected, with any version of     OpenSSL.  If the use is for the mere purposeof display, the severity is considered low.

    In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,CMS, CMP/CRMF or TS.  It also     impacts anything that processes X.509certificates, including simple things like verifying its signature.

    The impact on TLS is relatively low, because all versions of OpenSSL have a100KiB limit on the peer's     certificate chain.  Additionally, this onlyimpacts clients, or servers that have explicitly enabled     clientauthentication.

    In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,such as X.509 certificates.  This     is assumed to not happen in such a waythat it would cause a Denial of Service, so these versions are     considerednot affected by this issue in such a way that it would be cause for concern,and the severity is     therefore considered low. (CVE-2023-2650)

    Issue summary: Checking excessively long DH keys or parameters may be very slow.

    Impact summary: Applications that use the functions DH_check(), DH_check_ex()or EVP_PKEY_param_check() to     check a DH key or DH parameters may experience longdelays. Where the key or parameters that are being     checked have been obtainedfrom an untrusted source this may lead to a Denial of Service.

    The function DH_check() performs various checks on DH parameters. One of thosechecks confirms that the     modulus ('p' parameter) is not too large. Trying to usea very large modulus is slow and OpenSSL will not     normally use a modulus whichis over 10,000 bits in length.

    However the DH_check() function checks numerous aspects of the key or parametersthat have been supplied.
    Some of those checks use the supplied modulus valueeven if it has already been found to be too large.

    An application that calls DH_check() and supplies a key or parameters obtainedfrom an untrusted source     could be vulernable to a Denial of Service attack.

    The function DH_check() is itself called by a number of other OpenSSL functions.An application calling any     of those other functions may similarly be affected.The other functions affected by this are DH_check_ex()     andEVP_PKEY_param_check().

    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applicationswhen using the '-check'     option.

    The OpenSSL SSL/TLS implementation is not affected by this issue.The OpenSSL 3.0 and 3.1 FIPS providers     are not affected by this issue. (CVE-2023-3446)

    Issue summary: Generating excessively long X9.42 DH keys or checkingexcessively long X9.42 DH keys or     parameters may be very slow.

    Impact summary: Applications that use the functions DH_generate_key() togenerate an X9.42 DH key may     experience long delays.  Likewise, applicationsthat use DH_check_pub_key(), DH_check_pub_key_ex() or     EVP_PKEY_public_check()to check an X9.42 DH key or X9.42 DH parameters may experience long delays.Where     the key or parameters that are being checked have been obtained froman untrusted source this may lead to a     Denial of Service.

    While DH_check() performs all the necessary checks (as of CVE-2023-3817),DH_check_pub_key() doesn't make     any of these checks, and is thereforevulnerable for excessively large P and Q parameters.

    Likewise, while DH_generate_key() performs a check for an excessively largeP, it doesn't check for an     excessively large Q.

    An application that calls DH_generate_key() or DH_check_pub_key() andsupplies a key or parameters obtained     from an untrusted source could bevulnerable to a Denial of Service attack.

    DH_generate_key() and DH_check_pub_key() are also called by a number ofother OpenSSL functions.  An     application calling any of those otherfunctions may similarly be affected.  The other functions affected     by thisare DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate().

    Also vulnerable are the OpenSSL pkey command line application when using the-pubcheck option, as well as     the OpenSSL genpkey command line application.

    The OpenSSL SSL/TLS implementation is not affected by this issue.

    The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-5678)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Junos OS installed on the remote host is affected by multiple vulnerabilities as referenced in the JSA82974 advisory.

  - Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might     corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64     processors supporting the AVX512-IFMA instructions. Impact summary: If in an application that uses the     OpenSSL library an attacker can influence whether the POLY1305 MAC algorithm is used, the application     state might be corrupted with various application dependent consequences. The POLY1305 MAC (message     authentication code) implementation in OpenSSL does not save the contents of non-volatile XMM registers on     Windows 64 platform when calculating the MAC of data larger than 64 bytes. Before returning to the caller     all the XMM registers are set to zero rather than restoring their previous content. The vulnerable code is     used only on newer x86_64 processors supporting the AVX512-IFMA instructions. The consequences of this     kind of internal application state corruption can be various - from no consequences, if the calling     application does not depend on the contents of non-volatile XMM registers at all, to the worst     consequences, where the attacker could get complete control of the application process. However given the     contents of the registers are just zeroized so the attacker cannot put arbitrary values inside, the most     likely consequence, if any, would be an incorrect result of some application dependent calculations or a     crash leading to a denial of service. The POLY1305 MAC algorithm is most frequently used as part of the     CHACHA20-POLY1305 AEAD (authenticated encryption with associated data) algorithm. The most common usage of     this AEAD cipher is with TLS protocol versions 1.2 and 1.3 and a malicious client can influence whether     this AEAD cipher is used by the server. This implies that server applications using OpenSSL can be     potentially impacted. However we are currently not aware of any concrete application that would be     affected by this issue therefore we consider this a Low severity security issue. As a workaround the     AVX512-IFMA instructions support can be disabled at runtime by setting the environment variable     OPENSSL_ia32cap: OPENSSL_ia32cap=:~0x200000 The FIPS provider is not affected by this issue.
    (CVE-2023-4807)

  - Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths.
    This can lead to potential truncation or overruns during the initialisation of some symmetric ciphers.
    Impact summary: A truncation in the IV can result in non-uniqueness, which could result in loss of     confidentiality for some cipher modes. When calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or     EVP_CipherInit_ex2() the provided OSSL_PARAM array is processed after the key and IV have been     established. Any alterations to the key length, via the keylen parameter or the IV length, via the     ivlen parameter, within the OSSL_PARAM array will not take effect as intended, potentially causing     truncation or overreading of these values. The following ciphers and cipher modes are impacted: RC2, RC4,     RC5, CCM, GCM and OCB. For the CCM, GCM and OCB cipher modes, truncation of the IV can result in loss of     confidentiality. For example, when following NIST's SP 800-38D section 8.2.1 guidance for constructing a     deterministic IV for AES in GCM mode, truncation of the counter portion could lead to IV reuse. Both     truncations and overruns of the key and overruns of the IV will produce incorrect results and could, in     some cases, trigger a memory exception. However, these issues are not currently assessed as security     critical. Changing the key and/or IV lengths is not considered to be a common operation and the vulnerable     API was recently introduced. Furthermore it is likely that application developers will have spotted this     problem during testing since decryption would fail unless both peers in the communication were similarly     vulnerable. For these reasons we expect the probability of an application being vulnerable to this to be     quite low. However if an application is vulnerable then this issue is considered very serious. For these     reasons we have assessed this issue as Moderate severity overall. The OpenSSL SSL/TLS implementation is     not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this because the     issue lies outside of the FIPS provider boundary. OpenSSL 3.1 and 3.0 are vulnerable to this issue.
    (CVE-2023-5363)

  - There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName.
    X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME     incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently     interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL     checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may     allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or     enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate     chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these     inputs, the other input must already contain an X.400 address as a CRL distribution point, which is     uncommon. As such, this vulnerability is most likely to only affect applications which have implemented     their own functionality for retrieving CRLs over a network. (CVE-2023-0286)

  - A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient     to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful     decryption an attacker would have to be able to send a very large number of trial messages for decryption.
    The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS     connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An     attacker that had observed a genuine connection between a client and a server could use this flaw to send     trial messages to the server and record the time taken to process them. After a sufficiently large number     of messages the attacker could recover the pre-master secret used for the original connection and thus be     able to decrypt the application data sent over that connection. (CVE-2022-4304)

  - A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint     checking. Note that this occurs after certificate chain signature verification and requires either a CA to     have signed the malicious certificate or for the application to continue certificate verification despite     failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which     could lead to a denial of service attack. In theory it could also result in the disclosure of private     memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working     exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client,     this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the     server requests client authentication and a malicious client connects. (CVE-2022-4203)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
183384	Ubuntu 16.04 ESM / 18.04 ESM : OpenSSL vulnerabilities (USN-6435-1)	Nessus	Ubuntu Local Security Checks	2023/10/19	2024/9/18	critical
187088	RHEL 8 : openssl (RHSA-2023:7877)	Nessus	Red Hat Local Security Checks	2023/12/19	2025/3/14	critical
187735	CentOS 8 : openssl (CESA-2023:7877)	Nessus	CentOS Local Security Checks	2024/1/9	2024/4/11	medium
188733	EulerOS 2.0 SP9 : openssl (EulerOS-SA-2023-2883)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
188848	EulerOS 2.0 SP11 : shim (EulerOS-SA-2023-3021)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
188945	EulerOS Virtualization 2.9.0 : shim (EulerOS-SA-2023-3109)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	high
197222	EulerOS Virtualization 3.0.6.6 : shim (EulerOS-SA-2024-1666)	Nessus	Huawei Local Security Checks	2024/5/17	2024/5/17	medium
195055	Oracle Linux 9 : openssl / and / openssl-fips-provider (ELSA-2024-2447)	Nessus	Oracle Linux Local Security Checks	2024/5/6	2025/9/9	medium
236197	Alibaba Cloud Linux 3 : 0093: edk2 (ALINUX3-SA-2024:0093)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/14	critical
186675	RHEL 7 / 8 / 9 : Red Hat JBoss Web Server 5.7.7 (RHSA-2023:7622)	Nessus	Red Hat Local Security Checks	2023/12/7	2024/11/7	critical
188969	EulerOS 2.0 SP8 : openssl (EulerOS-SA-2023-3141)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	medium
239673	TencentOS Server 4: openssl (TSSA-2024:0912)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	high
192206	Amazon Linux 2 : edk2, --advisory ALAS2-2024-2502 (ALAS-2024-2502)	Nessus	Amazon Linux Local Security Checks	2024/3/18	2025/9/26	high
310750	Juniper Junos OS Multiple Vulnerabilities (JSA82974)	Nessus	Junos Local Security Checks	2026/4/28	2026/4/28	high

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