The epoll_ctl system call in fs/eventpoll.c in the Linux kernel...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://downloads.avaya.com/css/P8/documents/100165733
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
- http://www.securitytracker.com/id?1027237
- https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9
- http://secunia.com/advisories/51164
- http://www.openwall.com/lists/oss-security/2012/07/04/2
- http://ubuntu.com/usn/usn-1529-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9
- https://bugzilla.redhat.com/show_bug.cgi?id=837502
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CVSS Vectors
Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.