Heap-based buffer overflow in ldns - CVE-2011-3581

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11. A remote attacker can use a Resource Record to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2011-3581

External References

• http://lists.fedoraproject.org/pipermail/package-announce/2011-October/068091.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-October/068201.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-October/068239.html
• http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00008.html
• http://nlnetlabs.nl/svn/ldns/tags/release-1.6.11/Changelog
• http://seclists.org/oss-sec/2011/q3/503
• http://seclists.org/oss-sec/2011/q3/542
• http://secunia.com/advisories/46470
• http://secunia.com/advisories/46476
• http://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=403
• http://www.securityfocus.com/bid/49748

Related Security Bulletins

• Heap-based buffer overflow in ldns
• Gentoo update for ldns
• Fedora EPEL 5 update for ldns
• Fedora EPEL 6 update for ldns