[USN-2306-3] GNU C Library regression

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-2306-3
September 08, 2014

eglibc regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

USN-2306-1 introduced a regression in the GNU C Library.

Software Description:
- eglibc: GNU C Library

Details:

USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04 LTS,
the fix for CVE-2013-4357 introduced a memory leak in getaddrinfo. This
update fixes the problem.

We apologize for the inconvenience.

Original advisory 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)

Update instructions:

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

Ubuntu 10.04 LTS:
  libc6                           2.11.1-0ubuntu7.17

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

References:
  http://www.ubuntu.com/usn/usn-2306-3
  http://www.ubuntu.com/usn/usn-2306-1
  https://launchpad.net/bugs/1364584

Package Information:
  https://launchpad.net/ubuntu/+source/eglibc/2.11.1-0ubuntu7.17


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