USN-2306-1: GNU C Library vulnerabilities

4 August 2014

Several security issues were fixed in the GNU C Library.

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Releases

Packages

Details

Maksymilian Arciemowicz discovered that the GNU C Library incorrectly
handled the getaddrinfo() function. An attacker could use this issue to
cause a denial of service. This issue only affected Ubuntu 10.04 LTS.
(CVE-2013-4357)

It was discovered that the GNU C Library incorrectly handled the
getaddrinfo() function. An attacker could use this issue to cause a denial
of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS.
(CVE-2013-4458)

Stephane Chazelas discovered that the GNU C Library incorrectly handled
locale environment variables. An attacker could use this issue to possibly
bypass certain restrictions such as the ForceCommand restrictions in
OpenSSH. (CVE-2014-0475)

David Reid, Glyph Lefkowitz, and Alex Gaynor discovered that the GNU C
Library incorrectly handled posix_spawn_file_actions_addopen() path
arguments. An attacker could use this issue to cause a denial of service.
(CVE-2014-4043)

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.

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Update instructions

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

Ubuntu 14.04
Ubuntu 12.04
Ubuntu 10.04

After a standard system update you need to reboot your computer to make
all the necessary changes.