CVE-2009-0125

NOTE: this issue has been disputed by the upstream vendor. nasl/nasl_crypto2.c in the Nessus Attack Scripting Language library (aka libnasl) 2.2.11 does not properly check the return value from the OpenSSL DSA_do_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077. NOTE: the upstream vendor has disputed this issue, stating "while we do misuse this function (this is a bug), it has absolutely no security ramification.

• CWE-287

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517Exploit
• http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17
• http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
• http://openwall.com/lists/oss-security/2009/01/12/4
• http://www.attrition.org/pipermail/vim/2009-January/002133.html
• https://bugzilla.redhat.com/show_bug.cgi?id=479655Exploit
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517Exploit
• http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17
• http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
• http://openwall.com/lists/oss-security/2009/01/12/4
• http://www.attrition.org/pipermail/vim/2009-January/002133.html
• https://bugzilla.redhat.com/show_bug.cgi?id=479655Exploit

Published

Jan 15, 2009

Last Modified

Jun 16, 2026

Status

Modified

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