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==========================================================================
Ubuntu Security Notice USN-2306-1
August 04, 2014

eglibc vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the GNU C Library.

Software Description:
- eglibc: GNU C Library

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 14.04 LTS:
  libc6                           2.19-0ubuntu6.1

Ubuntu 12.04 LTS:
  libc6                           2.15-0ubuntu10.6

Ubuntu 10.04 LTS:
  libc6                           2.11.1-0ubuntu7.14

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

References:
  http://www.ubuntu.com/usn/usn-2306-1
  CVE-2013-4357, CVE-2013-4458, CVE-2014-0475, CVE-2014-4043

Package Information:
  https://launchpad.net/ubuntu/+source/eglibc/2.19-0ubuntu6.1
  https://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.6
  https://launchpad.net/ubuntu/+source/eglibc/2.11.1-0ubuntu7.14



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