Vulnerability CVE-2013-6450


Published: 2014-01-01

Description:
The DTLS retransmission implementation in OpenSSL 1.0.0 before 1.0.0l and 1.0.1 before 1.0.1f does not properly maintain data structures for digest and encryption contexts, which might allow man-in-the-middle attackers to trigger the use of a different context and cause a denial of service (application crash) by interfering with packet delivery, related to ssl/d1_both.c and ssl/t1_enc.c.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
OpenSSL 0.9.8y/1.x/1.0.1e man-in-the-middle attack 0day
Dr. Stephen Hens...
05.01.2014

Type:

CWE-310

(Cryptographic Issues)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
Openssl -> Openssl 

 References:
http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=34628967f1e65dc8f34e000f0f5518e21afbfc7b
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/msg00031.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00032.html
http://rhn.redhat.com/errata/RHSA-2014-0015.html
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.openssl.org/news/vulnerabilities.html
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/64618
http://www.securitytracker.com/id/1029549
http://www.securitytracker.com/id/1031594
http://www.ubuntu.com/usn/USN-2079-1
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://puppet.com/security/cve/cve-2013-6450
https://security-tracker.debian.org/tracker/CVE-2013-6450

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