CVE-2011-1082 EXPLOIT
4.9
MEDIUM · CVSS 2.0 · EPSS 0.8% (pctl 55)
Patch early
A public exploit exists.
Description
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory 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 | 0.78% — 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 (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.x - fs/eventpoll.c epoll Data Structure File Descriptor Local Denial of Service | 2011-03-02 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e
- http://openwall.com/lists/oss-security/2011/03/02/1
- http://openwall.com/lists/oss-security/2011/03/02/2
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- https://bugzilla.redhat.com/show_bug.cgi?id=681575
- https://lkml.org/lkml/2011/2/5/220
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=22bacca48a1755f79b7e0f192ddb9fbb7fc6e64e
- http://openwall.com/lists/oss-security/2011/03/02/1
- http://openwall.com/lists/oss-security/2011/03/02/2
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- https://bugzilla.redhat.com/show_bug.cgi?id=681575
- https://lkml.org/lkml/2011/2/5/220
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