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USN-2523-1: Apache HTTP Server vulnerabilities

10 March 2015

Several security issues were fixed in the Apache HTTP Server.

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Releases

Packages

Details

Martin Holst Swende discovered that the mod_headers module allowed HTTP
trailers to replace HTTP headers during request processing. A remote
attacker could possibly use this issue to bypass RequestHeaders directives.
(CVE-2013-5704)

Mark Montague discovered that the mod_cache module incorrectly handled
empty HTTP Content-Type headers. A remote attacker could use this issue to
cause the server to stop responding, leading to a denial of service. This
issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2014-3581)

Teguh P. Alko discovered that the mod_proxy_fcgi module incorrectly
handled long response headers. A remote attacker could use this issue to
cause the server to stop responding, leading to a denial of service. This
issue only affected Ubuntu 14.10. (CVE-2014-3583)

It was discovered that the mod_lua module incorrectly handled different
arguments within different contexts. A remote attacker could possibly use
this issue to bypass intended access restrictions. This issue only affected
Ubuntu 14.10. (CVE-2014-8109)

Guido Vranken discovered that the mod_lua module incorrectly handled a
specially crafted websocket PING in certain circumstances. A remote
attacker could possibly use this issue to cause the server to stop
responding, leading to a denial of service. This issue only affected
Ubuntu 14.10. (CVE-2015-0228)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04
Ubuntu 10.04

In general, a standard system update will make all the necessary changes.