CVE-2011-1076 json
net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereferen…
published 2011-10-05 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1091
- cvss
- 4.9
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.
Patch / fix
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- openwall.com http://openwall.com/lists/oss-security/2011/03/04/13 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
- Technology feeds
References
-
openwall.com
/lists/oss-security/2011/03/04/13
mailing-list, exploit, patch, third-party-advisory
- git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171
-
securitytracker.com
/id?1025162
vdb-entry, third-party-advisory
-
kernel.org
/pub/linux/kernel/v2.6/ChangeLog-2.6.38
broken-link
Sources
- CVE List CVE-2011-1076
- NVD CVE-2011-1076
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.