CVE-2013-4396

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    CVE-2013-4396

    Published: 10 Oct 2013Last Modified: 16 Apr 2026

    Summary:

    Details: Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

    References: http://lists.x.org/archives/xorg-announce/2013-October/002332.html, http://rhn.redhat.com/errata/RHSA-2013-1426.html, http://www.debian.org/security/2013/dsa-2784, http://www.ubuntu.com/usn/USN-1990-1, https://bugzilla.redhat.com/show_bug.cgi?id=1014561, http://lists.opensuse.org/opensuse-updates/2013-10/msg00056.html, http://lists.opensuse.org/opensuse-updates/2013-10/msg00060.html, http://openwall.com/lists/oss-security/2013/10/08/6, http://www.securityfocus.com/bid/62892

    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