USN-2306-2: GNU C Library regression

05 August 2014

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

Releases

Packages

Details

USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04 LTS,
the security update cause a regression in certain environments that use
the Name Service Caching Daemon (nscd), such as those configured for LDAP
or MySQL authentication. In these environments, the nscd daemon may need
to be stopped manually for name resolution to resume working so that
updates can be downloaded, including environments configured for unattended
updates.

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

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