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[USN-2306-3] GNU C Library regression

Posted on 08 September 2014
Ubuntu Security

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

eglibc regression
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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 LT=
S,
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 deni=
al
of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 L=
TS.
(CVE-2013-4458)
Stephane Chazelas discovered that the GNU C Library incorrectly handled=

locale environment variables. An attacker could use this issue to possib=
ly
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=
=2E
(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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