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Test ID:1.3.6.1.4.1.25623.1.0.871026
Category:Red Hat Local Security Checks
Title:RedHat Update for nss and nspr RHSA-2013:1135-01
Summary:The remote host is missing an update for the 'nss and nspr'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'nss and nspr'
package(s) announced via the referenced advisory.

Vulnerability Insight:
Network Security Services (NSS) is a set of libraries designed to support
the cross-platform development of security-enabled client and server
applications. Netscape Portable Runtime (NSPR) provides platform
independence for non-GUI operating system facilities.

It was discovered that NSS leaked timing information when decrypting
TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher suites
were used. A remote attacker could possibly use this flaw to retrieve plain
text from the encrypted packets by using a TLS/SSL or DTLS server as a
padding oracle. (CVE-2013-1620)

An out-of-bounds memory read flaw was found in the way NSS decoded certain
certificates. If an application using NSS decoded a malformed certificate,
it could cause the application to crash. (CVE-2013-0791)

Red Hat would like to thank the Mozilla project for reporting
CVE-2013-0791. Upstream acknowledges Ambroz Bizjak as the original reporter
of CVE-2013-0791.

This update also fixes the following bugs:

* A defect in the FreeBL library implementation of the Diffie-Hellman (DH)
protocol previously caused Openswan to drop connections. (BZ#958023)

* A memory leak in the nssutil_ReadSecmodDB() function has been fixed.
(BZ#986969)

In addition, the nss package has been upgraded to upstream version 3.14.3,
and the nspr package has been upgraded to upstream version 4.9.5. These
updates provide a number of bug fixes and enhancements over the previous
versions. (BZ#949845, BZ#924741)

Note that while upstream NSS version 3.14 prevents the use of certificates
that have an MD5 signature, this erratum includes a patch that allows such
certificates by default. To prevent the use of certificates that have an
MD5 signature, set the 'NSS_HASH_ALG_SUPPORT' environment variable
to '-MD5'.

Users of NSS and NSPR are advised to upgrade to these updated packages,
which fix these issues and add these enhancements. After installing this
update, applications using NSS or NSPR must be restarted for this update to
take effect.

Affected Software/OS:
nss and nspr on Red Hat Enterprise Linux (v. 5 server)

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-2013-0791
BugTraq ID: 58826
http://www.securityfocus.com/bid/58826
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17150
RedHat Security Advisories: RHSA-2013:1135
http://rhn.redhat.com/errata/RHSA-2013-1135.html
RedHat Security Advisories: RHSA-2013:1144
http://rhn.redhat.com/errata/RHSA-2013-1144.html
SuSE Security Announcement: SUSE-SU-2013:0645 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00013.html
SuSE Security Announcement: SUSE-SU-2013:0850 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00019.html
SuSE Security Announcement: openSUSE-SU-2013:0630 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00009.html
SuSE Security Announcement: openSUSE-SU-2013:0631 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00010.html
http://www.ubuntu.com/usn/USN-1791-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-1620
BugTraq ID: 57777
http://www.securityfocus.com/bid/57777
BugTraq ID: 64758
http://www.securityfocus.com/bid/64758
Bugtraq: 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities (Google Search)
http://www.securityfocus.com/archive/1/534161/100/0/threaded
http://seclists.org/fulldisclosure/2014/Dec/23
http://security.gentoo.org/glsa/glsa-201406-19.xml
http://www.isg.rhul.ac.uk/tls/TLStiming.pdf
http://openwall.com/lists/oss-security/2013/02/05/24
http://www.ubuntu.com/usn/USN-1763-1
CopyrightCopyright (c) 2013 Greenbone Networks GmbH

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