CVE-2011-3581

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-11-04 · updated 2026-06-16
Weakness: CWE-119

Description

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) with an unknown type containing input that is longer than a specified length.

Affected products

NLnet Labs ldns: through 1.6.10; 0.50, 0.60, 0.65, 0.66, 0.70, 1.0.0 (+19)

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
http://lists.fedoraproject.org/pipermail/package-announce/2011-October/068091.html

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