CVE-2013-6449

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 59.59% Top 5%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00006.html vendor advisory
http://www-01.ibm.com/support/docview.wss?uid=isg400001843
http://lists.opensuse.org/opensuse-updates/2014-01/msg00012.html vendor advisory
http://security.gentoo.org/glsa/glsa-201412-39.xml vendor advisory
http://www.debian.org/security/2014/dsa-2833 vendor advisory
http://www.securityfocus.com/archive/1/534161/100/0/threaded mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html vendor advisory
http://www-01.ibm.com/support/docview.wss?uid=isg400001841
http://www.securityfocus.com/bid/64530 vdb entry
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00009.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html vendor advisory
http://www.ubuntu.com/usn/USN-2079-1 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124833.html vendor advisory
http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124854.html vendor advisory
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://rhn.redhat.com/errata/RHSA-2014-0015.html vendor advisory
http://seclists.org/fulldisclosure/2014/Dec/23 mailing list
https://issues.apache.org/jira/browse/TS-2355
http://www.securitytracker.com/id/1029548 vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124858.html vendor advisory
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75
https://bugzilla.redhat.com/show_bug.cgi?id=1045363
http://rhn.redhat.com/errata/RHSA-2014-0041.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-6449?
CVE-2013-6449 has been scored as a medium severity vulnerability.
How to fix CVE-2013-6449?
To fix CVE-2013-6449, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-6449 being actively exploited in the wild?
It is possible that CVE-2013-6449 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~60% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.