[SECURITY] [DSA 3142-1] eglibc security update

ID DEBIAN:DSA-3142-1:A3964
Type debian
Reporter Debian
Modified 2015-01-27T15:39:01


Debian Security Advisory DSA-3142-1 security@debian.org http://www.debian.org/security/ Florian Weimer January 27, 2015 http://www.debian.org/security/faq

Package : eglibc CVE ID : CVE-2012-6656 CVE-2014-6040 CVE-2014-7817 CVE-2015-0235

Several vulnerabilities have been fixed in eglibc, Debian's version of the GNU C library:


Qualys discovered that the gethostbyname and gethostbyname2
functions were subject to a buffer overflow if provided with a
crafted IP address argument.  This could be used by an attacker to
execute arbitrary code in processes which called the affected

The original glibc bug was reported by Peter Klotz.


Tim Waugh of Red Hat discovered that the WRDE_NOCMD option of the
wordexp function did not suppress command execution in all cases.
This allows a context-dependent attacker to execute shell

CVE-2012-6656 CVE-2014-6040

The charset conversion code for certain IBM multi-byte code pages
could perform an out-of-bounds array access, causing the process
to crash.  In some scenarios, this allows a remote attacker to
cause a persistent denial of service.

For the stable distribution (wheezy), these problems have been fixed in version 2.13-38+deb7u7.

For the upcoming stable distribution (jessie) and the unstable distribution (sid), the CVE-2015-0235 issue has been fixed in version 2.18-1 of the glibc package.

We recommend that you upgrade your eglibc packages.

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org