CVE-2012-3375

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    CVE-2012-3375

    Published: 3 Oct 2012Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://secunia.com/advisories/51164, https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9, https://bugzilla.redhat.com/show_bug.cgi?id=837502, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9, 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://downloads.avaya.com/css/P8/documents/100165733

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High