CVE-2010-0731 Information

Description

The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1 when running on big-endian 64-bit platforms calls the asn1_read_value with a pointer to the wrong data type and the wrong length value which allows remote attackers to bypass the certificate revocation list (CRL) check and cause a stack-based buffer overflow via a crafted X.509 certificate related to extraction of a serial number.

Reference

http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html http://secunia.com/advisories/39127 http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/4230 http://www.mandriva.com/security/advisories?name=MDVSA-2010:089 http://www.redhat.com/support/errata/RHSA-2010-0167.html http://www.securityfocus.com/bid/38959 http://www.vupen.com/english/advisories/2010/0713 http://www.vupen.com/english/advisories/2010/1054 https://bugzilla.redhat.com/show_bug.cgi?id=573028 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9759