CVE-2011-1076

Name: CVE-2011-1076
Creator: NVD / NIST
Published: 2011-10-05T02:56:24.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.52%

Last modified Jun 16, 2026

CVE-2011-1076 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.52%

39.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.38

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171
http://openwall.com/lists/oss-security/2011/03/04/13Exploit, Mailing List, Patch, Third Party Advisory
http://securitytracker.com/id?1025162Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171
http://openwall.com/lists/oss-security/2011/03/04/13Exploit, Mailing List, Patch, Third Party Advisory
http://securitytracker.com/id?1025162Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38Broken Link

Timeline

Published: Oct 5, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1076?

How severe is CVE-2011-1076?

Severity scoring for CVE-2011-1076 is pending analysis. The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1076?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-1076?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST