Unrated severityNVD Advisory· Published Mar 25, 2009· Updated Jun 16, 2026

CVE-2009-1086

Description

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nlnetlabs/Ldns3 versions
cpe:2.3:a:nlnetlabs:ldns:1.4.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:nlnetlabs:ldns:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:nlnetlabs:ldns:1.4.1:*:*:*:*:*:*:*
- (no CPE)range: 1.4.x

Patches

Vulnerability mechanics

References

lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.htmlnvd
secunia.com/advisories/35013nvd
secunia.com/advisories/35065nvd
www.debian.org/security/2009/dsa-1795nvd
www.nlnetlabs.nl/bugs/show_bug.cginvd
www.nlnetlabs.nl/svn/ldns/tags/release-1.5.0/Changelognvd
www.openwall.com/lists/oss-security/2009/03/24/4nvd
www.securityfocus.com/bid/34233nvd

News mentions

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