Vulnerability CVE-2013-6449


Published: 2013-12-23   Modified: 2013-12-24

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
OpenSSL 1.0.1e Incorrect Version Number ssl_get_algorithm2() Remote DoS
Dr. Stephen Hens...
05.01.2014

Type:

CWE-310

(Cryptographic Issues)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Openssl -> Openssl 

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

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