CVE-2012-1191
The resolver in dnscache in Daniel J. Bernstein djbdns 1.05 overwrites cached server names and...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-1191- CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-1191- Updated
- 2026-11-02
EUVDEUVD-2012-1219 No score
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.
- Record
EUVD-2012-1219- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xp3x-24fv-qfpm No score
The resolver in dnscache in Daniel J. Bernstein djbdns 1.05 overwrites cached server names and...
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.
- Record
GHSA-xp3x-24fv-qfpm- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2012-1191- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-1191 No score
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.
- Record
DEBIAN-CVE-2012-1191- Updated
- 2026-11-02
OSVUBUNTU-CVE-2012-1191 No score
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.
- Record
UBUNTU-CVE-2012-1191- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
djbdnsDebian:12 |
before 1:1.05-10 | 1:1.05-10 |
djbdnsDebian:13 |
before 1:1.05-10 | 1:1.05-10 |
djbdnsDebian:14 |
before 1:1.05-10 | 1:1.05-10 |
djbdnsUbuntu:16.04:LTS |
All versions, plus listed versions 1:1.05-8ubuntu1 |
None known |
djbdnsUbuntu:22.04:LTS |
All versions, plus listed versions 1:1.05-15fakesync1 |
None known |
djbdnsUbuntu:24.04:LTS |
All versions, plus listed versions 1:1.05-15ubuntu2 |
None known |
djbdnsUbuntu:25.10 |
All versions, plus listed versions 1:1.05-15ubuntu21:1.05-22ubuntu1 |
None known |
djbdnsUbuntu:26.10 |
All versions, plus listed versions 1:1.05-22ubuntu21:1.05-23fakesync1 |
None known |
djbdnsUbuntu:26.04:LTS |
All versions, plus listed versions 1:1.05-22ubuntu11:1.05-22ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-1191 is a medium vulnerability (CVSS 6.4) in D.j.bernstein Djbdns, published February 17, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.79%, the 78th percentile. Fixed in djbdns 1:1.05-10.