The remote NewStart CGSL host, running version MAIN 6.02, has nss packages installed that are affected by multiple vulnerabilities:

  - When converting coordinates from projective to affine, the modular inversion was not performed in constant     time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80     and Firefox for Android < 80. (CVE-2020-12400)

  - A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using     multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling     multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest     threat from this vulnerability is to confidentiality and system availability. (CVE-2020-12403)

  - When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which     leaked partial information about the nonce used during signature generation. Given an electro-magnetic     trace of a few signature generations, the private key could have been computed. This vulnerability affects     Firefox < 80 and Firefox for Android < 80. (CVE-2020-6829)

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4076 advisory.

    Network Security Services (NSS) is a set of libraries designed to support the cross-platform development     of security-enabled client and server applications.

    Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities.

    The following packages have been upgraded to a later upstream version: nss (3.53.1), nss-softokn (3.53.1),     nss-util (3.53.1), nspr (4.25.0). (BZ#1804262, BZ#1804264, BZ#1804271, BZ#1804273)

    Security Fix(es):

    * nss: Out-of-bounds read when importing curve25519 private key (CVE-2019-11719)

    * nss: Use-after-free in sftk_FreeSession due to improper refcounting (CVE-2019-11756)

    * nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)

    * nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)

    * nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function     (CVE-2020-12400)

    * nss: ECDSA timing attack mitigation bypass (CVE-2020-12401)

    * nss: Side channel vulnerabilities during RSA key generation (CVE-2020-12402)

    * nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

    * nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (CVE-2019-11727)

    * nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state (CVE-2019-17023)

    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.

    Bug Fix(es):

    * Memory leak: libcurl leaks 120 bytes on each connection (BZ#1688958)

    * NSS does not set downgrade sentinel in ServerHello.random for TLS 1.0 and TLS 1.1 (BZ#1712924)

    * Make TLS 1.3 work in FIPS mode (BZ#1724251)

    * Name Constraints validation: CN treated as DNS name even when syntactically invalid as DNS name     (BZ#1737910)

    * x25519 allowed in FIPS mode (BZ#1754518)

    * When NSS_SDB_USE_CACHE not set, after curl access https, dentry increase but never released - consider     alternative algorithm for benchmarking ACCESS call in sdb_measureAccess (BZ#1779325)

    * Running ipa-backup continuously causes httpd to crash and makes it irrecoverable (BZ#1804015)

    * nss needs to comply to the new SP800-56A rev 3 requirements (BZ#1857308)

    * KDF-self-tests-induced changes for nss in RHEL 7.9 (BZ#1870885)

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.

Updates the nss package to upstream NSS 3.55.

For details about new functionality and a list of bugs fixed in this release please see the upstream release notes

- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes

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

Security Fix(es) :

  - nss: Out-of-bounds read when importing curve25519     private key (CVE-2019-11719)

  - nss: Use-after-free in sftk_FreeSession due to improper     refcounting (CVE-2019-11756)

  - nss: Check length of inputs for cryptographic primitives     (CVE-2019-17006)

  - nss: Side channel attack on ECDSA signature generation     (CVE-2020-6829)

  - nss: P-384 and P-521 implementation uses a side-channel     vulnerable modular inversion function (CVE-2020-12400)

  - nss: ECDSA timing attack mitigation bypass     (CVE-2020-12401)

  - nss: Side channel vulnerabilities during RSA key     generation (CVE-2020-12402)

  - nss: CHACHA20-POLY1305 decryption with undersized tag     leads to out-of-bounds read (CVE-2020-12403)

  - nss: PKCS#1 v1.5 signatures can be used for TLS 1.3     (CVE-2019-11727)

  - nss: TLS 1.3 HelloRetryRequest downgrade request sets     client into invalid state (CVE-2019-17023)

The version of nspr installed on the remote host is prior to 4.25.0-2. The version of nss installed on the remote host is prior to 3.53.1-3. The version of nss-softokn installed on the remote host is prior to 3.53.1-6. The version of nss- util installed on the remote host is prior to 3.53.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1559 advisory.

    When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger     an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information     disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
    (CVE-2019-11719)

    A vulnerability exists where it possible to force Network Security Services (NSS) to sign     CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in     CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This     vulnerability affects Firefox < 68. (CVE-2019-11727)

    A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session     handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user     running the application compiled with NSS. (CVE-2019-11756)

    A vulnerability was discovered in nss where input text length was not checked when using certain     cryptographic primitives. This could lead to a heap-buffer overflow resulting in a crash and data leak.
    The highest threat is to confidentiality and integrity of data as well as system availability.
    (CVE-2019-17006)

    A protocol downgrade flaw was found in Network Security Services (NSS). After a HelloRetryRequest has been     sent, the client may negotiate a lower protocol than TLS 1.3, resulting in an invalid state transition in     the TLS State Machine. If the client gets into this state, incoming Application Data records will be     ignored. (CVE-2019-17023)

    A side channel flaw was found in nss, in the way P-384 and P-521 curves are used in the generation of EDSA     signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures,     this information can be used to steal the private key. The highest threat from this vulnerability is to     data confidentiality. (CVE-2020-12400)

    A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and     non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature     generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures,     this information can be used to steal the private key. The highest threat from this vulnerability is to     data confidentiality. (CVE-2020-12401)

    A flaw was found in NSS, where it is vulnerable to RSA key generation cache timing side-channel attacks.
    An attacker with sufficient access to mount cache timing attacks during the RSA key generation process     could recover the private key. The highest threat to this flaw is to confidentiality. (CVE-2020-12402)

    A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS. When using multi-part Chacha20, it     could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which     was not functioning correctly) and strictly enforcing tag length. The highest threat from this     vulnerability is to confidentiality and system availability. (CVE-2020-12403)

    A flaw was found in nss. Using the EM side-channel, it is possible to extract the position of zero and     non-zero wNAF digits while nss-certutil tool performs scalar multiplication during the ECDSA signature     generation, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures,     this information can be used to steal the private key. The highest threat from this vulnerability is to     data confidentiality. (CVE-2020-6829)

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 remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-1536:01 advisory.

    * nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)
      * nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function     (CVE-2020-12400)
      * nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 AOS installed on the remote host is prior to 5.19.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.19.1 advisory.

  - In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length     checks. In cases where the application calling the library did not perform a sanity check on the inputs it     could result in a crash due to a buffer overflow. (CVE-2019-17006)

  - Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. (CVE-2019-5482)

  - In all versions of cpio before 2.13 does not properly validate input files when generating TAR archives.
    When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may     contain files with permissions the attacker did not have or in paths he did not have access to. Extracting     those archives from a high-privilege user without carefully reviewing them may lead to the compromise of     the system. (CVE-2019-14866)

  - If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to     8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the     HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP     headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This     could lead to users seeing responses for unexpected resources. (CVE-2020-13943)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported     versions that are affected are 5.6.45 and prior, 5.7.27 and prior and 8.0.17 and prior. Easily exploitable     vulnerability allows low privileged attacker with network access via multiple protocols to compromise     MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang     or frequently repeatable crash (complete DOS) of MySQL Server. (CVE-2019-2974)

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
154580	NewStart CGSL MAIN 6.02 : nss Multiple Vulnerabilities (NS-SA-2021-0121)	Nessus	NewStart CGSL Local Security Checks	2021/10/27	2021/10/27	critical
141059	RHEL 7 : nss and nspr (RHSA-2020:4076)	Nessus	Red Hat Local Security Checks	2020/9/30	2024/11/7	critical
139633	Fedora 32 : nss (2020-481c7e285d)	Nessus	Fedora Local Security Checks	2020/8/18	2020/11/6	medium
141689	Scientific Linux Security Update : nss and nspr on SL7.x x86_64 (20201001)	Nessus	Scientific Linux Local Security Checks	2020/10/21	2024/2/14	critical
139778	Fedora 31 : nss (2020-426fd04fd0)	Nessus	Fedora Local Security Checks	2020/8/25	2020/11/6	medium
142720	Amazon Linux 2 : nspr, nss-softokn, nss-util, nss (ALAS-2020-1559)	Nessus	Amazon Linux Local Security Checks	2020/11/11	2024/12/11	critical
293911	MiracleLinux 8 : nss-3.53.1-17.0.1.el8 (AXSA:2021-1536:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	critical
164584	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.19.1)	Nessus	Misc.	2022/9/1	2025/7/22	critical

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