RHSA-2012-1098: glibc

NASLDB: RHSA-2012-1098: glibc

General

ID: 60058
Name: RHSA-2012-1098: glibc

Summary: Check for the version of the glibc packages

Credits: Tenable Network Security, Inc.

Classification

Risk: –

CVSS: –
CVSS Base Vector: –
CVSS Temporal Vector: –

Port: 0
Family: Red Hat Local Security Checks
Type: Local

Description

Updated glibc packages that fix three security issues and one bug are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

The glibc packages provide the standard C and standard math libraries used
by multiple programs on the system. Without these libraries, the Linux
system cannot function properly.

Multiple errors in glibc\‘s formatted printing functionality could allow an
attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code
using a format string flaw in an application, even though these protections
are expected to limit the impact of such flaws to an application abort.
(CVE-2012-3404, CVE-2012-3405, CVE-2012-3406)

This update also fixes the following bug:

A programming error caused an internal array of nameservers to be only

partially initialized when the /etc/resolv.conf file contained IPv6
nameservers. Depending on the contents of a nearby structure, this could
cause certain applications to terminate unexpectedly with a segmentation
fault. The programming error has been fixed, which restores proper behavior
with IPv6 nameservers listed in the /etc/resolv.conf file. (BZ#837026)

All users of glibc are advised to upgrade to these updated packages, which
contain backported patches to fix these issues.