VulnerabilityModified
CVE-2011-4528
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.
MEDIUM 5.0EPSS 2.84%
Does this matter?
Lower severity and a low EPSS score (2.84%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 2.84% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- unbound/unbound
- Source
- cret@cert.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.