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

  - 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)

  - In Apache httpd 2.4.0 to 2.4.29, 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. This comes from the 'HTTP_SESSION' variable     name used by mod_session to forward its data to CGIs,     since the prefix 'HTTP_' is also used by the Apache     HTTP Server to pass HTTP header fields, per CGI     specifications.(CVE-2018-1283)

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.

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]

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 NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has httpd packages installed that are affected by multiple vulnerabilities:

  - 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)

  - In Apache httpd 2.4.0 to 2.4.29, 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. This comes from the HTTP_SESSION variable name used by mod_session to forward its data     to CGIs, since the prefix HTTP_ is also used by the Apache HTTP Server to pass HTTP header fields, per     CGI specifications. (CVE-2018-1283)

  - 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)

  - In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be     self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the     request URL. (CVE-2019-10098)

  - In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be     self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within     the request URL. (CVE-2020-1927)

  - In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a     malicious FTP server. (CVE-2020-1934)

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
132128	EulerOS 2.0 SP3 : httpd (EulerOS-SA-2019-2593)	Nessus	Huawei Local Security Checks	2019/12/18	2025/2/21	medium
118251	SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:1161-2)	Nessus	SuSE Local Security Checks	2018/10/22	2022/2/7	critical
154565	NewStart CGSL CORE 5.05 / MAIN 5.05 : httpd Multiple Vulnerabilities (NS-SA-2021-0159)	Nessus	NewStart CGSL Local Security Checks	2021/10/27	2025/2/20	high

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