Scientific Linux SL6.x Moderate: glibc Security Update for DoS

Date: Tue, 21 Apr 2015 09:06:16 -0500
Reply-To: Pat Riehecky 
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: FASTBUGS for SL 7x x86_64 now available
MIME-Version: 1.0

The following FASTBUGS have been uploaded to

x86_64:
tzdata-2015c-1.el7.noarch.rpm
tzdata-java-2015c-1.el7.noarch.rpm
Date: Tue, 21 Apr 2015 14:06:47 +0000
Reply-To: scientific-linux-users@
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Moderate: glibc on SL6.x i386/x86_64
MIME-Version: 1.0

Synopsis: Moderate: glibc security and bug fix update
Advisory ID: SLSA-2015:0863-1
Issue Date: 2015-04-21
CVE Numbers: CVE-2013-7423
 CVE-2015-1781
--

A buffer overflow flaw was found in the way glibc's gethostbyname_r() and
other related functions computed the size of a buffer when passed a
misaligned buffer as input. An attacker able to make an application call
any of these functions with a misaligned buffer could use this flaw to
crash the application or, potentially, execute arbitrary code with the
permissions of the user running the application. (CVE-2015-1781)

It was discovered that, under certain circumstances, glibc's getaddrinfo()
function would send DNS queries to random file descriptors. An attacker
could potentially use this flaw to send DNS queries to unintended
recipients, resulting in information disclosure or data loss due to the
application encountering corrupted data. (CVE-2013-7423)

This update also fixes the following bug:

* Previously, the nscd daemon did not properly reload modified data when
the user edited monitored nscd configuration files. As a consequence, nscd
returned stale data to system processes. This update adds a system of
inotify-based monitoring and stat-based backup monitoring for nscd
configuration files. As a result, nscd now detects changes to its
configuration files and reloads the data properly, which prevents it from
returning stale data.
--

SL6
 x86_64
 glibc-2.12-1.149.el6_6.7.i686.rpm
 glibc-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-common-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-debuginfo-2.12-1.149.el6_6.7.i686.rpm
 glibc-debuginfo-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-debuginfo-common-2.12-1.149.el6_6.7.i686.rpm
 glibc-debuginfo-common-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-devel-2.12-1.149.el6_6.7.i686.rpm
 glibc-devel-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-headers-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-utils-2.12-1.149.el6_6.7.x86_64.rpm
 nscd-2.12-1.149.el6_6.7.x86_64.rpm
 glibc-static-2.12-1.149.el6_6.7.i686.rpm
 glibc-static-2.12-1.149.el6_6.7.x86_64.rpm
 i386
 glibc-2.12-1.149.el6_6.7.i686.rpm
 glibc-common-2.12-1.149.el6_6.7.i686.rpm
 glibc-debuginfo-2.12-1.149.el6_6.7.i686.rpm
 glibc-debuginfo-common-2.12-1.149.el6_6.7.i686.rpm
 glibc-devel-2.12-1.149.el6_6.7.i686.rpm
 glibc-headers-2.12-1.149.el6_6.7.i686.rpm
 glibc-utils-2.12-1.149.el6_6.7.i686.rpm
 nscd-2.12-1.149.el6_6.7.i686.rpm
 glibc-static-2.12-1.149.el6_6.7.i686.rpm

- Scientific Linux Development Team