Vulnerability 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 Score
5.0
MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Unbound | Unbound | <= 1.4.13 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.ht
- http://osvdb.org/77909
- http://secunia.com/advisories/47326
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatchVendor Advisory
- http://www.debian.org/security/2011/dsa-2370
- http://www.kb.cert.org/vuls/id/209659PatchThird Party AdvisoryUS Government Resource
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.ht
- http://osvdb.org/77909
- http://secunia.com/advisories/47326
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatchVendor Advisory
- http://www.debian.org/security/2011/dsa-2370
- http://www.kb.cert.org/vuls/id/209659PatchThird Party AdvisoryUS Government Resource
FAQ
What is CVE-2011-4528?
CVE-2011-4528 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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) v...
How severe is CVE-2011-4528?
CVE-2011-4528 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4528?
Check the references section above for vendor advisories and patch information. Affected products include: Unbound Unbound.