eglibc - security update

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

• CVE-2015-0235
  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
  functions.

The original glibc bug was reported by Peter Klotz.

• CVE-2014-7817
  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
  commands.
• 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.