CVE-2013-4623 Information

Description

The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115922.html http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115927.html http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116351.html http://www.debian.org/security/2013/dsa-2782 http://www.securityfocus.com/bid/61764 https://bugzilla.redhat.com/show_bug.cgi?id=997767 https://github.com/polarssl/polarssl/commit/1922a4e6aade7b1d685af19d4d9339ddb5c02859 https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03