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CentOS 5 : nss (CESA-2013:1135)
medium Nessus Plugin ID 69215
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated nss and nspr packages that fix two security issues, various bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.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.
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.
Solution
Update the affected nss packages.See Also
Plugin Details
Severity: Medium
ID: 69215
File Name: centos_RHSA-2013-1135.nasl
Version: 1.8
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 8/6/2013
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 4.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2013-0791
Vulnerability Information
CPE: p-cpe:/a:centos:centos:nss-tools, p-cpe:/a:centos:centos:nss, p-cpe:/a:centos:centos:nspr, p-cpe:/a:centos:centos:nss-devel, p-cpe:/a:centos:centos:nss-pkcs11-devel, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:nspr-devel
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/5/2013
Vulnerability Publication Date: 2/8/2013
Reference Information
CVE: CVE-2013-0791, CVE-2013-1620
RHSA: 2013:1135