Vulnerability Details : CVE-2012-3375
Potential exploit
The epoll_ctl system call in fs/eventpoll.c in the Linux kernel before 3.2.24 does not properly handle ELOOP errors in EPOLL_CTL_ADD operations, which allows local users to cause a denial of service (file-descriptor consumption and system crash) via a crafted application that attempts to create a circular epoll dependency. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083.
Vulnerability category: Denial of service
Products affected by CVE-2012-3375
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.33:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.34:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.19:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.20:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.14:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.15:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.16:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.17:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.18:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.21:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.2.22:*:*:*:*:*:*:*
Threat overview for CVE-2012-3375
Top countries where our scanners detected CVE-2012-3375
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2012-3375 139,337
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2012-3375!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2012-3375
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-3375
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
References for CVE-2012-3375
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9
-
http://secunia.com/advisories/51164
Sign in
-
http://ubuntu.com/usn/usn-1529-1
USN-1529-1: Linux kernel vulnerabilities | Ubuntu security notices
-
http://www.openwall.com/lists/oss-security/2012/07/04/2
oss-security - Re: CVE Request -- kernel: epoll: can leak file descriptors when returning -ELOOP
-
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
-
http://www.securitytracker.com/id?1027237
Linux Kernel epoll_ctl() Bug Lets Local Users Deny Service - SecurityTracker
-
https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9
epoll: clear the tfile_check_list on -ELOOP · torvalds/linux@13d5180 · GitHubExploit
-
https://bugzilla.redhat.com/show_bug.cgi?id=837502
837502 – (CVE-2012-3375) CVE-2012-3375 kernel: epoll: can leak file descriptors when returning -ELOOP
-
https://downloads.avaya.com/css/P8/documents/100165733
ASA-2012-344 (RHSA-2012-1061)
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