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AUSCERT External Security Bulletin Redistribution
ESB-2015.0188
eglibc security update
28 January 2015
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AusCERT Security Bulletin Summary
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Product: eglibc
Publisher: Debian
Operating System: Debian GNU/Linux 7
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0235 CVE-2014-7817 CVE-2014-6040
CVE-2012-6656
Reference: ESB-2015.0035
ESB-2014.2457
Original Bulletin:
http://www.debian.org/security/2015/dsa-3142
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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
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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:
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.
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
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