CVE-2011-5321

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    CVE-2011-5321

    Published: 2 May 2016Last Modified: 10 Apr 2026

    Summary:

    Details: The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.

    References: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8358acaeffd8e0c551ddcc24d1206143376, http://rhn.redhat.com/errata/RHSA-2015-1221.html, https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d1206143376, https://bugzilla.redhat.com/show_bug.cgi?id=1201887, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1, http://www.openwall.com/lists/oss-security/2015/03/13/17

    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
    CVE-2011-5321 | CVE-DB