This script is Copyright (C) 2013 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
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)
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.
- A memory leak in the nssutil_ReadSecmodDB() function has
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.
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'.
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 :
Medium / CVSS Base Score : 5.0
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 69223 ()
CVE ID: CVE-2013-0791CVE-2013-1620
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