The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-0906 advisory.

    - updated patch for CVE-2016-8743

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.

Security Fix(es) :

  - It was discovered that the mod_session_crypto module of     httpd did not use any mechanisms to verify integrity of     the encrypted session data stored in the user's browser.
    A remote attacker could use this flaw to decrypt and     modify session data using a padding oracle attack.
    (CVE-2016-0736)

  - It was discovered that the mod_auth_digest module of     httpd did not properly check for memory allocation     failures. A remote attacker could use this flaw to cause     httpd child processes to repeatedly crash if the server     used HTTP digest authentication. (CVE-2016-2161)

  - It was discovered that the HTTP parser in httpd     incorrectly allowed certain characters not permitted by     the HTTP protocol specification to appear unencoded in     HTTP request headers. If httpd was used in conjunction     with a proxy or backend server that interpreted those     characters differently, a remote attacker could possibly     use this flaw to inject data into HTTP responses,     resulting in proxy cache poisoning. (CVE-2016-8743)

Note: The fix for the CVE-2016-8743 issue causes httpd to return '400 Bad Request' error to HTTP clients which do not strictly follow HTTP protocol specification. A newly introduced configuration directive 'HttpProtocolOptions Unsafe' can be used to re-enable the old less strict parsing. However, such setting also re-introduces the CVE-2016-8743 issue.

Bug Fix(es) :

  - When waking up child processes during a graceful     restart, the httpd parent process could attempt to open     more connections than necessary if a large number of     child processes had been active prior to the restart.
    Consequently, a graceful restart could take a long time     to complete. With this update, httpd has been fixed to     limit the number of connections opened during a graceful     restart to the number of active children, and the     described problem no longer occurs.

  - Previously, httpd running in a container returned the     500 HTTP status code (Internal Server Error) when a     connection to a WebSocket server was closed. As a     consequence, the httpd server failed to deliver the     correct HTTP status and data to a client. With this     update, httpd correctly handles all proxied requests to     the WebSocket server, and the described problem no     longer occurs.

  - In a configuration using LDAP authentication with the     mod_authnz_ldap module, the name set using the     AuthLDAPBindDN directive was not correctly used to bind     to the LDAP server for all queries. Consequently,     authorization attempts failed. The LDAP modules have     been fixed to ensure the configured name is correctly     bound for LDAP queries, and authorization using LDAP no     longer fails.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:1414 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 2.4.23 Service Pack 1 serves as a     replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.23, and includes bug fixes, which are     documented in the Release Notes document linked to in the References.

    Security Fix(es):

    * A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session     renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of     memory and, possibly, exit unexpectedly after exhausting all available memory, if it enabled OCSP stapling     support. (CVE-2016-6304)

    * It was discovered that the mod_session_crypto module of httpd did not use any mechanisms to verify     integrity of the encrypted session data stored in the user's browser. A remote attacker could use this     flaw to decrypt and modify session data using a padding oracle attack. (CVE-2016-0736)

    * It was discovered that the mod_auth_digest module of httpd did not properly check for memory allocation     failures. A remote attacker could use this flaw to cause httpd child processes to repeatedly crash if the     server used HTTP digest authentication. (CVE-2016-2161)

    * A timing attack flaw was found in OpenSSL that could allow a malicious user with local access to recover     ECDSA P-256 private keys. (CVE-2016-7056)

    * A denial of service flaw was found in the way the TLS/SSL protocol defined processing of ALERT packets     during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an     excessive amount of CPU and fail to accept connections from other clients. (CVE-2016-8610)

    * It was discovered that the HTTP parser in httpd incorrectly allowed certain characters not permitted by     the HTTP protocol specification to appear unencoded in HTTP request headers. If httpd was used in     conjunction with a proxy or backend server that interpreted those characters differently, a remote     attacker could possibly use this flaw to inject data into HTTP responses, resulting in proxy cache     poisoning. (CVE-2016-8743)

    * A vulnerability was found in httpd's handling of the LimitRequestFields directive in mod_http2,     affecting servers with HTTP/2 enabled. An attacker could send crafted requests with headers larger than     the server's available memory, causing httpd to crash. (CVE-2016-8740)

    Red Hat would like to thank the OpenSSL project for reporting CVE-2016-6304 and Shi Lei (Gear Team of     Qihoo 360 Inc.) for reporting CVE-2016-8610. Upstream acknowledges Shi Lei (Gear Team of Qihoo 360 Inc.)     as the original reporter of CVE-2016-6304.

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.

New httpd packages are available for Slackware 14.0, 14.1, 14.2, and
-current to fix security issues.

The remote host is running Mac OS X 10.11.6 or Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities affecting the following components :

  - 802.1X
  - apache
  - AppleScript
  - ATS
  - Audio
  - CFString
  - CoreText
  - curl
  - Dictionary Widget
  - file
  - Fonts
  - fsck_msdos
  - HFS
  - Heimdal
  - HelpViewer
  - ImageIO
  - Kernel
  - libarchive
  - Open Scripting Architecture
  - PCRE
  - Postfix
  - Quick Look
  - QuickTime
  - Remote Management
  - Sandbox
  - StreamingZip
  - tcpdump
  - Wi-Fi

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
99329	Oracle Linux 7 : httpd (ELSA-2017-0906)	Nessus	Oracle Linux Local Security Checks	2017/4/13	2024/10/22	high
99350	Scientific Linux Security Update : httpd on SL7.x x86_64 (20170412)	Nessus	Scientific Linux Local Security Checks	2017/4/13	2025/12/25	high
117316	RHEL 6 : Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1 for RHEL 6 (Important) (RHSA-2017:1414)	Nessus	Red Hat Local Security Checks	2018/9/6	2025/4/15	high
96090	Slackware 14.0 / 14.1 / 14.2 / current : httpd (SSA:2016-358-01) (httpoxy)	Nessus	Slackware Local Security Checks	2016/12/27	2026/1/7	high
104379	macOS and Mac OS X Multiple Vulnerabilities (Security Update 2017-001 and 2017-004)	Nessus	MacOS X Local Security Checks	2017/11/3	2025/11/14	critical

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