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This script is Copyright (C) 2013 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
A flaw was found in the way NSS handled invalid handshake packets. A
remote attacker could use this flaw to cause a TLS/SSL client using
NSS to crash or, possibly, execute arbitrary code with the privileges
of the user running the application. (CVE-2013-5605)
It was found that the fix for CVE-2013-1620 released via
SLSA-2013:1135 introduced a regression causing NSS to read
uninitialized data when a decryption failure occurred. A remote
attacker could use this flaw to cause a TLS/SSL server using NSS to
An integer overflow flaw was discovered in both NSS and NSPR's
implementation of certification parsing on 64-bit systems. A remote
attacker could use these flaws to cause an application using NSS or
NSPR to crash. (CVE-2013-1741, CVE-2013-5607)
It was discovered that NSS did not reject certificates with
incompatible key usage constraints when validating them while the
verifyLog feature was enabled. An application using the NSS
certificate validation API could accept an invalid certificate.
In addition, the nss package has been upgraded to upstream version
3.15.3, and the nspr package has been upgraded to upstream version
4.10.2. These updates provide a number of bug fixes and enhancements
over the previous versions.
This update also fixes the following bug :
- The SLBA-2013:1318 update introduced a regression that
prevented the use of certificates that have an MD5
signature. This update fixes this regression and
certificates that have an MD5 signature are once again
supported. To prevent the use of certificates that have
an MD5 signature, set the 'NSS_HASH_ALG_SUPPORT'
environment variable to '-MD5'.
After installing this update, applications using NSS or NSPR must be
restarted for this update to take effect.
See also :
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.5
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 71306 ()
CVE ID: CVE-2013-1620CVE-2013-1739CVE-2013-1741CVE-2013-5605CVE-2013-5606CVE-2013-5607
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