CVE-2012-3375

kernel: epoll: can leak file descriptors when returning -ELOOP

Published Oct 3, 2012 CVSS 2.0 · 4.9 Medium EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2012-3348 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.
Ubuntu USN Ubuntu USN USN-1514-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1529-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1532-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1533-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1539-1 Linux kernel (Oneiric backport) vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 8:05 PM
Reserved
Jun 14, 2012, 12:00 AM
Status
Modified
Published
Oct 3, 2012, 11:02 AM
Modified
Jun 16, 2026, 11:43 PM
Severity
Moderate
Public date
Mar 27, 2012, 12:00 AM