This update for apache2 fixes the following issues :

  - CVE-2018-1283: when mod_session is configured to forward     its session data to CGI applications (SessionEnv on, not     the default), a remote user may influence their content     by using a \'Session\' header leading to unexpected     behavior [bsc#1086814].

  - CVE-2018-1301: due to an out of bound access after a     size limit being reached by reading the HTTP header, a     specially crafted request could lead to remote denial of     service. [bsc#1086817]

  - CVE-2018-1303: a specially crafted HTTP request header     could lead to crash due to an out of bound read while     preparing data to be cached in shared     memory.[bsc#1086813]

  - CVE-2017-15715: a regular expression could match '$' to     a newline character in a malicious filename, rather than     matching only the end of the filename. leading to     corruption of uploaded files.[bsc#1086774]

  - CVE-2018-1312: when generating an HTTP Digest     authentication challenge, the nonce sent to prevent     reply attacks was not correctly generated using a     pseudo-random seed. In a cluster of servers using a     common Digest authentication configuration, HTTP     requests could be replayed across servers by an attacker     without detection. [bsc#1086775]

  - CVE-2017-15710: mod_authnz_ldap, if configured with     AuthLDAPCharsetConfig, uses the Accept-Language header     value to lookup the right charset encoding when     verifying the user's credentials. If the header value is     not present in the charset conversion table, a fallback     mechanism is used to truncate it to a two characters     value to allow a quick retry (for example, 'en-US' is     truncated to 'en'). A header value of less than two     characters forces an out of bound write of one NUL byte     to a memory location that is not part of the string. In     the worst case, quite unlikely, the process would crash     which could be used as a Denial of Service attack. In     the more likely case, this memory is already reserved     for future use and the issue has no effect at all.
    [bsc#1086820]

  - gensslcert: fall back to 'localhost' as hostname     [bsc#1057406]

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

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3558 advisory.

    The Apache HTTP Server is a powerful, efficient, and extensible web server. The httpd24 packages provide a     recent stable release of version 2.4 of the Apache HTTP Server, along with the mod_auth_kerb module.

    The following packages have been upgraded to a later upstream version: httpd24-httpd (2.4.34),     httpd24-curl (7.61.1). (BZ#1590833, BZ#1648928)

    Security Fix(es):

    * httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for     CGI applications (CVE-2018-1283)

    * httpd: Out of bounds read in mod_cache_socache can allow a remote attacker to cause DoS (CVE-2018-1303)

    * httpd: mod_http2: Too much time allocated to workers, possibly leading to DoS (CVE-2018-1333)

    * httpd: DoS for HTTP/2 connections by continuous SETTINGS frames (CVE-2018-11763)

    * httpd: Out of bounds write in mod_authnz_ldap when using too small Accept-Language values     (CVE-2017-15710)

    * httpd: <FilesMatch> bypass with a trailing newline in the file name (CVE-2017-15715)

    * httpd: Out of bounds access after failure in reading the HTTP request (CVE-2018-1301)

    * httpd: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312)

    * curl: Multiple security issues were fixed in httpd24-curl (CVE-2016-5419, CVE-2016-5420, CVE-2016-5421,     CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619,     CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586,     CVE-2017-1000100, CVE-2017-1000101, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-7407, CVE-2017-8816,     CVE-2017-8817, CVE-2018-1000007, CVE-2018-1000120, CVE-2018-1000121, CVE-2018-1000122, CVE-2018-1000301,     CVE-2018-14618)

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

    Red Hat would like to thank the Curl project for reporting CVE-2017-8816, CVE-2017-8817, CVE-2017-1000254,     CVE-2017-1000257, CVE-2018-1000007, CVE-2018-1000120, CVE-2018-1000122, CVE-2018-1000301, CVE-2016-9586,     CVE-2017-1000100, CVE-2017-1000101, CVE-2018-14618, and CVE-2018-1000121. Upstream acknowledges Alex     Nichols as the original reporter of CVE-2017-8816; the OSS-Fuzz project as the original reporter of     CVE-2017-8817 and CVE-2018-1000301; Max Dymond as the original reporter of CVE-2017-1000254 and     CVE-2018-1000122; Brian Carpenter and the OSS-Fuzz project as the original reporters of CVE-2017-1000257;
    Craig de Stigter as the original reporter of CVE-2018-1000007; Duy Phan Thanh as the original reporter of     CVE-2018-1000120; Even Rouault as the original reporter of CVE-2017-1000100; Brian Carpenter as the     original reporter of CVE-2017-1000101; Zhaoyang Wu as the original reporter of CVE-2018-14618; and Dario     Weisser as the original reporter of CVE-2018-1000121.

    Bug Fix(es):

    * Previously, the Apache HTTP Server from the httpd24 Software Collection was unable to handle situations     when static content was repeatedly requested in a browser by refreshing the page. As a consequence, HTTP/2     connections timed out and httpd became unresponsive. This bug has been fixed, and HTTP/2 connections now     work as expected in the described scenario. (BZ#1518737)

    Enhancement(s):

    * This update adds the mod_md module to the httpd24 Software Collection. This module enables managing     domains across virtual hosts and certificate provisioning using the Automatic Certificate Management     Environment (ACME) protocol. The mod_md module is available only for Red Hat Enterprise Linux 7.
    (BZ#1640722)

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Software Collections 3.2 Release     Notes linked from 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 MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2019-3739:01 advisory.

    * httpd: Improper handling of headers in mod_session can allow a remote user to modify session data for     CGI applications (CVE-2018-1283)
    * httpd: Out of bounds read in mod_cache_socache can allow a remote attacker to cause DoS (CVE-2018-1303)
    * httpd: mod_http2: Too much time allocated to workers, possibly leading to DoS (CVE-2018-1333)
    * httpd: DoS for HTTP/2 connections by continuous SETTINGS frames (CVE-2018-11763)
    * httpd: Out of bounds write in mod_authnz_ldap when using too small Accept-Language values     (CVE-2017-15710)
    * httpd:  bypass with a trailing newline in the file name (CVE-2017-15715)
    * httpd: Out of bounds access after failure in reading the HTTP request (CVE-2018-1301)
    * httpd: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312)
    * curl: Multiple security issues were fixed in httpd24-curl (CVE-2016-5419, CVE-2016-5420, CVE-2016-5421,     CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619,     CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586,     CVE-2017-1000100, CVE-2017-1000101, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-7407, CVE-2017-8816,     CVE-2017-8817, CVE-2018-1000007, CVE-2018-1000120, CVE-2018-1000121, CVE-2018-1000122, CVE-2018-1000301,     CVE-2018-14618)

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.

This update for apache2 fixes the following issues :

  - CVE-2018-1283: when mod_session is configured to forward     its session data to CGI applications (SessionEnv on, not     the default), a remote user may influence their content     by using a \'Session\' header leading to unexpected     behavior [bsc#1086814].

  - CVE-2018-1301: due to an out of bound access after a     size limit being reached by reading the HTTP header, a     specially crafted request could lead to remote denial of     service. [bsc#1086817]

  - CVE-2018-1303: a specially crafted HTTP request header     could lead to crash due to an out of bound read while     preparing data to be cached in shared     memory.[bsc#1086813]

  - CVE-2017-15715: a regular expression could match '$' to     a newline character in a malicious filename, rather than     matching only the end of the filename. leading to     corruption of uploaded files.[bsc#1086774]

  - CVE-2018-1312: when generating an HTTP Digest     authentication challenge, the nonce sent to prevent     reply attacks was not correctly generated using a     pseudo-random seed. In a cluster of servers using a     common Digest authentication configuration, HTTP     requests could be replayed across servers by an attacker     without detection. [bsc#1086775]

  - CVE-2017-15710: mod_authnz_ldap, if configured with     AuthLDAPCharsetConfig, uses the Accept-Language header     value to lookup the right charset encoding when     verifying the user's credentials. If the header value is     not present in the charset conversion table, a fallback     mechanism is used to truncate it to a two characters     value to allow a quick retry (for example, 'en-US' is     truncated to 'en'). A header value of less than two     characters forces an out of bound write of one NUL byte     to a memory location that is not part of the string. In     the worst case, quite unlikely, the process would crash     which could be used as a Denial of Service attack. In     the more likely case, this memory is already reserved     for future use and the issue has no effect at all.
    [bsc#1086820]

  - CVE-2018-1302: when an HTTP/2 stream was destroyed after     being handled, it could have written a NULL pointer     potentially to an already freed memory. The memory pools     maintained by the server make this vulnerability hard to     trigger in usual configurations, the reporter and the     team could not reproduce it outside debug builds, so it     is classified as low risk. [bsc#1086820]

This update was imported from the SUSE:SLE-12-SP2:Update update project.

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:0367 advisory.

    Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This     software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged     under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent     update experience.

    This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.29 Service Pack 1 serves as an update     to Red Hat JBoss Core Services Apache HTTP Server 2.4.29, and includes bug fixes for CVEs which are linked     to in the References section.

    Security Fixes:

    * httpd: DoS for HTTP/2 connections by continuous SETTINGS (CVE-2018-11763)

    * httpd: Weak Digest auth nonce generation in mod_auth_digest     (CVE-2018-1312)

    * httpd: Out of bound access after failure in reading the HTTP request     (CVE-2018-1301)

    * httpd: Use-after-free on HTTP/2 stream shutdown (CVE-2018-1302)

    * httpd: <FilesMatch> bypass with a trailing newline in the file name     (CVE-2017-15715)

    * httpd: Out of bound write in mod_authnz_ldap when using too small     Accept-Language values (CVE-2017-15710)

    * httpd: Out of bounds read in mod_cache_socache can allow a remote     attacker to cause a denial of service (CVE-2018-1303)

    * httpd: Improper handling of headers in mod_session can allow a remote     user to modify session data for CGI applications (CVE-2018-1283)

    * httpd: mod_http2: too much time allocated to workers, possibly leading to     DoS (CVE-2018-1333)

    * mod_jk: connector path traversal due to mishandled HTTP requests in httpd     (CVE-2018-11759)

    * nghttp2: Null pointer dereference when too large ALTSVC frame is received     (CVE-2018-1000168)

    * openssl: Handling of crafted recursive ASN.1 structures can cause a stack     overflow and resulting denial of service (CVE-2018-0739)

    Details around each issue, including information about the CVE, severity of     the issue, and the CVSS score, can be found on the CVE pages listed in the     Reference section below.

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 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.

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

  - In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and     2.4.0 to 2.4.29, mod_authnz_ldap, if configured with     AuthLDAPCharsetConfig, uses the Accept-Language header     value to lookup the right charset encoding when     verifying the user's credentials. If the header value     is not present in the charset conversion table, a     fallback mechanism is used to truncate it to a two     characters value to allow a quick retry (for example,     'en-US' is truncated to 'en'). A header value of less     than two characters forces an out of bound write of one     NUL byte to a memory location that is not part of the     string. In the worst case, quite unlikely, the process     would crash which could be used as a Denial of Service     attack. In the more likely case, this memory is already     reserved for future use and the issue has no effect at     all.(CVE-2017-15710)

  - In Apache httpd 2.4.0 to 2.4.29, the expression     specified in could match '$' to a newline character in     a malicious filename, rather than matching only the end     of the filename. This could be exploited in     environments where uploads of some files are are     externally blocked, but only by matching the trailing     portion of the filename.(CVE-2017-15715)

  - In Apache httpd 2.2.0 to 2.4.29, when generating an     HTTP Digest authentication challenge, the nonce sent to     prevent reply attacks was not correctly generated using     a pseudo-random seed. In a cluster of servers using a     common Digest authentication configuration, HTTP     requests could be replayed across servers by an     attacker without detection.(CVE-2018-1312)

  - A specially crafted HTTP request header could have     crashed the Apache HTTP Server prior to version 2.4.30     due to an out of bound read while preparing data to be     cached in shared memory. It could be used as a Denial     of Service attack against users of mod_cache_socache.
    The vulnerability is considered as low risk since     mod_cache_socache is not widely used, mod_cache_disk is     not concerned by this vulnerability.(CVE-2018-1303)

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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline     character in a malicious filename, rather than matching only the end of the filename. This could be     exploited in environments where uploads of some files are are externally blocked, but only by matching the     trailing portion of the filename. (CVE-2017-15715)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Apache httpd reports :

Out of bound write in mod_authnz_ldap with AuthLDAPCharsetConfig enabled (CVE-2017-15710)

mod_session: CGI-like applications that intend to read from mod_session's 'SessionEnv ON' could be fooled into reading user-supplied data instead. (CVE-2018-1283)

mod_cache_socache: Fix request headers parsing to avoid a possible crash with specially crafted input data. (CVE-2018-1303)

core: Possible crash with excessively long HTTP request headers.
Impractical to exploit with a production build and production LogLevel. (CVE-2018-1301)

core: Configure the regular expression engine to match '$' to the end of the input string only, excluding matching the end of any embedded newline characters. Behavior can be changed with new directive 'RegexDefaultOptions'. (CVE-2017-15715)

mod_auth_digest: Fix generation of nonce values to prevent replay attacks across servers using a common Digest domain. This change may cause problems if used with round robin load balancers.
(CVE-2018-1312)

mod_http2: Potential crash w/ mod_http2. (CVE-2018-1302)

Use-after-free on HTTP/2 stream shutdown

When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. (CVE-2018-1302)

Bypass with a trailing newline in the file name

In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename. (CVE-2017-15715)

Out of bounds read in mod_cache_socache can allow a remote attacker to cause a denial of service

A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.
(CVE-2018-1303)

Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications

It has been discovered that the mod_session module of Apache HTTP Server (httpd), through version 2.4.29, has an improper input validation flaw in the way it handles HTTP session headers in some configurations. A remote attacker may influence their content by using a 'Session' header. (CVE-2018-1283)

Out of bound write in mod_authnz_ldap when using too small Accept-Language values

In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.
(CVE-2017-15710)

Out of bound access after failure in reading the HTTP request

A specially crafted request could have crashed the Apache HTTP Server prior to version 2.4.30, due to an out of bound access after a size limit is reached by reading the HTTP header. This vulnerability is considered very hard if not impossible to trigger in non-debug mode (both log and build level), so it is classified as low risk for common server usage. (CVE-2018-1301)

Weak Digest auth nonce generation in mod_auth_digest

In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. (CVE-2018-1312)

Security Fix(es) :

  - httpd: Improper handling of headers in mod_session can     allow a remote user to modify session data for CGI     applications (CVE-2018-1283)

  - httpd: Out of bounds read in mod_cache_socache can allow     a remote attacker to cause DoS (CVE-2018-1303)

  - httpd: mod_rewrite configurations vulnerable to open     redirect (CVE-2020-1927)

  - httpd: <FilesMatch> bypass with a trailing newline in     the file name (CVE-2017-15715)

  - httpd: mod_rewrite potential open redirect     (CVE-2019-10098)

  - httpd: mod_proxy_ftp use of uninitialized value     (CVE-2020-1934)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
108876	SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:0879-1)	Nessus	SuSE Local Security Checks	2018/4/6	2024/11/14	critical
194113	RHEL 6 / 7 : httpd24 (RHSA-2018:3558)	Nessus	Red Hat Local Security Checks	2024/4/27	2025/3/16	critical
289086	MiracleLinux 7 : httpd24-nghttp2-1.7.1-7.el7, httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7 (AXSA:2019-3739:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
109664	openSUSE Security Update : apache2 (openSUSE-2018-438)	Nessus	SuSE Local Security Checks	2018/5/10	2024/10/10	critical
122292	RHEL 6 / 7 : Red Hat JBoss Core Services Apache HTTP Server 2.4.29 (RHSA-2019:0367)	Nessus	Red Hat Local Security Checks	2019/2/19	2024/11/6	critical
164584	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.19.1)	Nessus	Misc.	2022/9/1	2025/7/22	critical
110877	EulerOS 2.0 SP3 : httpd (EulerOS-SA-2018-1213)	Nessus	Huawei Local Security Checks	2018/7/3	2024/9/6	critical
220828	Linux Distros Unpatched Vulnerability : CVE-2017-15715	Nessus	Misc.	2025/3/4	2025/8/21	high
108945	SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:0901-1)	Nessus	SuSE Local Security Checks	2018/4/10	2024/11/12	critical
108626	FreeBSD : apache -- multiple vulnerabilities (f38187e7-2f6e-11e8-8f07-b499baebfeaf)	Nessus	FreeBSD Local Security Checks	2018/3/27	2024/12/6	critical
109555	Amazon Linux AMI : httpd24 (ALAS-2018-1004)	Nessus	Amazon Linux Local Security Checks	2018/5/4	2024/10/14	critical
141711	Scientific Linux Security Update : httpd on SL7.x x86_64 (20201001)	Nessus	Scientific Linux Local Security Checks	2020/10/21	2025/2/20	high

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