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Test ID:1.3.6.1.4.1.25623.1.0.870725
Category:Red Hat Local Security Checks
Title:RedHat Update for libtasn1 RHSA-2012:0427-01
Summary:The remote host is missing an update for the 'libtasn1'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'libtasn1'
package(s) announced via the referenced advisory.

Vulnerability Insight:
libtasn1 is a library developed for ASN.1 (Abstract Syntax Notation One)
structures management that includes DER (Distinguished Encoding Rules)
encoding and decoding.

A flaw was found in the way libtasn1 decoded DER data. An attacker could
create carefully-crafted DER encoded input (such as an X.509 certificate)
that, when parsed by an application that uses libtasn1 (such as
applications using GnuTLS), could cause the application to crash.
(CVE-2012-1569)

Red Hat would like to thank Matthew Hall of Mu Dynamics for reporting this
issue.

Users of libtasn1 are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all applications linked to the libtasn1 library must be restarted,
or the system rebooted.

Affected Software/OS:
libtasn1 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:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2012-1569
Bugtraq: 20120320 Mu Dynamics, Inc. Security Advisories MU-201202-01 and MU-201202-02 for GnuTLS and Libtasn1 (Google Search)
http://archives.neohapsis.com/archives/bugtraq/2012-03/0099.html
Debian Security Information: DSA-2440 (Google Search)
http://www.debian.org/security/2012/dsa-2440
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/076856.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/076865.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077339.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076699.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078207.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077284.html
http://www.mandriva.com/security/advisories?name=MDVSA-2012:039
http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5932
http://article.gmane.org/gmane.comp.gnu.libtasn1.general/53
http://article.gmane.org/gmane.comp.gnu.libtasn1.general/54
http://www.openwall.com/lists/oss-security/2012/03/20/3
http://www.openwall.com/lists/oss-security/2012/03/20/8
http://www.openwall.com/lists/oss-security/2012/03/21/5
RedHat Security Advisories: RHSA-2012:0427
http://rhn.redhat.com/errata/RHSA-2012-0427.html
RedHat Security Advisories: RHSA-2012:0488
http://rhn.redhat.com/errata/RHSA-2012-0488.html
RedHat Security Advisories: RHSA-2012:0531
http://rhn.redhat.com/errata/RHSA-2012-0531.html
http://www.securitytracker.com/id?1026829
http://secunia.com/advisories/48397
http://secunia.com/advisories/48488
http://secunia.com/advisories/48505
http://secunia.com/advisories/48578
http://secunia.com/advisories/48596
http://secunia.com/advisories/49002
http://secunia.com/advisories/50739
http://secunia.com/advisories/57260
SuSE Security Announcement: SUSE-SU-2014:0320 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
http://www.ubuntu.com/usn/USN-1436-1
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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