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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2012:0058
The remote host is missing updates announced in
advisory RHSA-2012:0058.

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

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the way the glibc library read timezone files. If a
carefully-crafted timezone file was loaded by an application linked against
glibc, it could cause the application to crash or, potentially, execute
arbitrary code with the privileges of the user running the application.

A denial of service flaw was found in the remote procedure call (RPC)
implementation in glibc. A remote attacker able to open a large number of
connections to an RPC service that is using the RPC implementation from
glibc, could use this flaw to make that service use an excessive amount of
CPU time. (CVE-2011-4609)

This update also fixes the following bugs:

* glibc had incorrect information for numeric separators and groupings for
specific French, Spanish, and German locales. Therefore, applications
utilizing glibc's locale support printed numbers with the wrong separators
and groupings when those locales were in use. With this update, the
separator and grouping information has been fixed. (BZ#754116)

* The RHBA-2011:1179 glibc update introduced a regression, causing glibc to
incorrectly parse groups with more than 126 members, resulting in
applications such as id failing to list all the groups a particular user
was a member of. With this update, group parsing has been fixed.

* glibc incorrectly allocated too much memory due to a race condition
within its own malloc routines. This could cause a multi-threaded
application to allocate more memory than was expected. With this update,
the race condition has been fixed, and malloc's behavior is now consistent
with the documentation regarding the MALLOC_ARENA_TEST and MALLOC_ARENA_MAX
environment variables. (BZ#769594)

Users should upgrade to these updated packages, which contain backported
patches to resolve these issues.

Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

Risk factor : Medium

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-5029;a=commit;h=97ac2654b2d831acaa18a2b018b0736245903fd2
Common Vulnerability Exposure (CVE) ID: CVE-2011-4609
CopyrightCopyright (c) 2012 E-Soft Inc.

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