CVE-2011-4528

MediumCVSS 5.0/10Last modified Jun 16, 2026

Description

Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.

Metrics

CVSS 2.0 5.0/10AV:N/AC:L/Au:N/C:N/I:N/A:P

Weakness enumeration

CWE-399

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html
http://osvdb.org/77909
http://secunia.com/advisories/47326
http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatch, Vendor Advisory
http://www.debian.org/security/2011/dsa-2370
http://www.kb.cert.org/vuls/id/209659Patch, Third Party Advisory, US Government Resource
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html
http://osvdb.org/77909
http://secunia.com/advisories/47326
http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatch, Vendor Advisory
http://www.debian.org/security/2011/dsa-2370
http://www.kb.cert.org/vuls/id/209659Patch, Third Party Advisory, US Government Resource

Timeline

Published: Dec 20, 2011
Last modified: Jun 16, 2026
NVD status: Modified

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