CVE-2012-1191
6.4 · MEDIUMThe resolver in dnscache in Daniel J.
Overview
CVE-2012-1191 is a medium-severity vulnerability affecting d.j.bernstein djbdns. It was published on February 17, 2012 and has a CVSS 2.0 base score of 6.4 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
The resolver in dnscache in Daniel J. Bernstein djbdns 1.05 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.
Remediation
Check the references section for vendor advisories and patches from d.j.bernstein. Update djbdns to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
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Frequently asked questions
What is CVE-2012-1191?
CVE-2012-1191 is a medium-severity vulnerability affecting d.j.bernstein djbdns. It was published on February 17, 2012 and has a CVSS 2.0 base score of 6.4 (MEDIUM).
How severe is CVE-2012-1191?
This vulnerability has a CVSS 2.0 base score of 6.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2012-1191?
Check the references section for vendor advisories and patches from d.j.bernstein. Update djbdns to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2012-1191?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-1191 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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