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Test ID:1.3.6.1.4.1.25623.1.0.870629
Category:Red Hat Local Security Checks
Title:RedHat Update for glibc RHSA-2011:1526-03
Summary:The remote host is missing an update for the 'glibc'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'glibc'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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.

A flaw was found in the way the ldd utility identified dynamically linked
libraries. If an attacker could trick a user into running ldd on a
malicious binary, it could result in arbitrary code execution with the
privileges of the user running ldd. (CVE-2009-5064)

It was found that the glibc addmntent() function, used by various mount
helper utilities, did not handle certain errors correctly when updating the
mtab (mounted file systems table) file. If such utilities had the setuid
bit set, a local attacker could use this flaw to corrupt the mtab file.
(CVE-2011-1089)

Red Hat would like to thank Dan Rosenberg for reporting the CVE-2011-1089
issue.

This update also fixes several bugs and adds various enhancements.
Documentation for these bug fixes and enhancements will be available
shortly from the Technical Notes document, linked to in the References
section.

Users are advised to upgrade to these updated glibc packages, which contain
backported patches to resolve these issues and add these enhancements.

Affected Software/OS:
glibc on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
6.9

CVSS Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-5064
http://reverse.lostrealm.com/protect/ldd.html
http://www.catonmat.net/blog/ldd-arbitrary-code-execution/
https://bugzilla.redhat.com/show_bug.cgi?id=531160
https://bugzilla.redhat.com/show_bug.cgi?id=682998
http://openwall.com/lists/oss-security/2011/03/07/10
http://openwall.com/lists/oss-security/2011/03/07/7
http://openwall.com/lists/oss-security/2011/03/08/2
http://openwall.com/lists/oss-security/2011/03/07/13
http://openwall.com/lists/oss-security/2011/03/08/1
http://openwall.com/lists/oss-security/2011/03/08/10
http://openwall.com/lists/oss-security/2011/03/08/3
http://openwall.com/lists/oss-security/2011/03/08/7
http://www.redhat.com/support/errata/RHSA-2011-1526.html
Common Vulnerability Exposure (CVE) ID: CVE-2011-1089
BugTraq ID: 46740
http://www.securityfocus.com/bid/46740
http://www.mandriva.com/security/advisories?name=MDVSA-2011:178
http://www.mandriva.com/security/advisories?name=MDVSA-2011:179
http://sourceware.org/bugzilla/show_bug.cgi?id=12625
https://bugzilla.redhat.com/show_bug.cgi?id=688980
http://openwall.com/lists/oss-security/2011/03/04/11
http://openwall.com/lists/oss-security/2011/03/04/9
http://openwall.com/lists/oss-security/2011/03/04/10
http://openwall.com/lists/oss-security/2011/03/04/12
http://openwall.com/lists/oss-security/2011/03/05/3
http://openwall.com/lists/oss-security/2011/03/05/7
http://openwall.com/lists/oss-security/2011/03/07/9
http://openwall.com/lists/oss-security/2011/03/14/16
http://openwall.com/lists/oss-security/2011/03/14/5
http://openwall.com/lists/oss-security/2011/03/14/7
http://openwall.com/lists/oss-security/2011/03/15/6
http://openwall.com/lists/oss-security/2011/03/22/4
http://openwall.com/lists/oss-security/2011/03/22/6
http://openwall.com/lists/oss-security/2011/03/31/3
http://openwall.com/lists/oss-security/2011/03/31/4
http://openwall.com/lists/oss-security/2011/04/01/2
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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