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    CVE-2011-5321

    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.

    Published:Oct 12, 2011
    Last Modified:Apr 12, 2025
    EPS:May 2, 2016
    EPSS Score:0.00042
    CVSS Score:5.5

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

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

    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