CVE Database


Impact: Important
Public: 2013-12-19
Bugzilla: 1045363: CVE-2013-6449 openssl: crash when using TLS 1.2 caused by use of incorrect hash algorithm
IAVA: 2014-A-0062


The MITRE CVE dictionary describes this issue as:

The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure, which allows remote attackers to cause a denial of service (daemon crash) via crafted traffic from a TLS 1.2 client.

Find out more about CVE-2013-6449 from the MITRE CVE dictionary and NIST NVD.


This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 5 and earlier.

CVSS v2 metrics

Base Score: 5.0
Base Metrics: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2014:0041 January 21, 2014
Red Hat Enterprise Linux version 6 (openssl) RHSA-2014:0015 January 08, 2014

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.