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 local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and…
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 0.8%. Treat it as high on anything reachable from the internet.
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.
- CVSS 2.0
- 4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 0.80% probability · 56th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 2 March 2011
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- linux/linux kernel · suse/linux enterprise desktop · suse/linux enterprise server · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://article.gmane.org/gmane.linux.kernel/1105744Broken Link
- http://article.gmane.org/gmane.linux.kernel/1105888Broken Link
- http://article.gmane.org/gmane.linux.kernel/1106686Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.htmlMailing List, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/02/1Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/02/2Mailing List, Patch
- http://rhn.redhat.com/errata/RHSA-2012-0862.htmlThird Party Advisory
- http://secunia.com/advisories/43522Third Party Advisory
- http://secunia.com/advisories/48115Third Party Advisory
- http://secunia.com/advisories/48410Third Party Advisory
- http://secunia.com/advisories/48898Third Party Advisory
- http://secunia.com/advisories/48964Third Party Advisory
- http://www.osvdb.org/71265Broken Link
- https://bugzilla.redhat.com/show_bug.cgi?id=681578Issue Tracking, Patch, Third Party Advisory
- http://article.gmane.org/gmane.linux.kernel/1105744Broken Link
- http://article.gmane.org/gmane.linux.kernel/1105888Broken Link
- http://article.gmane.org/gmane.linux.kernel/1106686Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.htmlMailing List, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/02/1Mailing List, Patch, Third Party Advisory
- http://openwall.com/lists/oss-security/2011/03/02/2Mailing List, Patch
- http://rhn.redhat.com/errata/RHSA-2012-0862.htmlThird Party Advisory
- http://secunia.com/advisories/43522Third Party Advisory
- http://secunia.com/advisories/48115Third Party Advisory
- http://secunia.com/advisories/48410Third Party Advisory
- http://secunia.com/advisories/48898Third Party Advisory
- http://secunia.com/advisories/48964Third Party Advisory
- http://www.osvdb.org/71265Broken Link
- https://bugzilla.redhat.com/show_bug.cgi?id=681578Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.