CVE-2012-3375
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.
Key facts
- CVSS score
- 4.9 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:C- EPSS score
- 1.0% (63th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-3348)
- Published
- October 3, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-3348 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
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- linux / linux kernel
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- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
and 17 more…
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9
- http://secunia.com/advisories/51164
- http://ubuntu.com/usn/usn-1529-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
- http://www.openwall.com/lists/oss-security/2012/07/04/2
- http://www.securitytracker.com/id?1027237
- https://bugzilla.redhat.com/show_bug.cgi?id=837502
- https://downloads.avaya.com/css/P8/documents/100165733
- https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9(Exploit)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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