CVE-2011-1083 Denial of service in n/a

What is CVE-2011-1083?

CVE-2011-1083 is a medium-severity denial of service vulnerability in Linux kernel, published on 3 Apr 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

Weakness: CWE-400

Which versions are affected by CVE-2011-1083?

It affects 6 products.

Products include Linux kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.

How do I fix CVE-2011-1083?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-1083 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1083 exists.

Public exploit code: 1 Exploit-DB entry.

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-vx34-r39m-w274, RHBA-2012:0496, RHSA-2012:0150.