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    CVE-2011-3581

    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.

    Published:Nov 4, 2011
    Last Modified:Apr 11, 2025
    EPS:Nov 4, 2011
    EPSS Score:0.04066
    CVSS Score:6.8

    Affected Products

    Vendor
    Nlnetlabs
    Product
    Ldns

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-10846 (CVSS 8.2) — NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UD…
    CVE-2020-19860 (CVSS 6.5) — When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of boun…
    CVE-2020-19861 (CVSS 7.5) — When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length valu…
    CVE-2017-1000232 (CVSS 9.8) — A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.…
    CVE-2017-1000231 (CVSS 9.8) — A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors.…
    CVE-2014-3209 (CVSS 2.1) — The ldns-keygen tool in ldns 1.6.x uses the current umask to set the privileges of the private key, which migh…
    CVE-2009-1086 (CVSS 6.4) — Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers …

    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High