CVE-2011-1083 EXPLOIT
4.9
MEDIUM · CVSS 2.0 · EPSS 0.8% (pctl 55)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 0.8% — more likely to be exploited than 55% of all CVEs |
| Weakness | CWE-400 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-04-04 |
| Last modified | 2026-06-16 |
Affected (6)
| Vendor | Product |
|---|---|
| linux | linux kernel |
| redhat | enterprise linux desktop |
| redhat | enterprise linux server |
| redhat | enterprise linux workstation |
| suse | linux enterprise desktop |
| suse | linux enterprise server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.x - epoll Nested Structures Local Denial of Service | 2011-03-02 |
References
- http://article.gmane.org/gmane.linux.kernel/1105744
- http://article.gmane.org/gmane.linux.kernel/1105888
- http://article.gmane.org/gmane.linux.kernel/1106686
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://openwall.com/lists/oss-security/2011/03/02/1
- http://openwall.com/lists/oss-security/2011/03/02/2
- http://rhn.redhat.com/errata/RHSA-2012-0862.html
- http://secunia.com/advisories/43522
- http://secunia.com/advisories/48115
- http://secunia.com/advisories/48410
- http://secunia.com/advisories/48898
- http://secunia.com/advisories/48964
- http://www.osvdb.org/71265
- https://bugzilla.redhat.com/show_bug.cgi?id=681578
- http://article.gmane.org/gmane.linux.kernel/1105744
- http://article.gmane.org/gmane.linux.kernel/1105888
- http://article.gmane.org/gmane.linux.kernel/1106686
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
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