CVE-2011-1076 Null dereference in n/a

What is CVE-2011-1076?

CVE-2011-1076 is a medium-severity vulnerability in Linux kernel, published on 5 Oct 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2011-1076?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2011-1076?

No fix has been published for CVE-2011-1076 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-1076 being exploited?

There is no known exploitation of CVE-2011-1076 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7x34-477r-7v7v.