CVE-2014-6051

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    CVE-2014-6051

    Published: 30 Sept 2014Last Modified: 16 Apr 2026

    Summary:

    Details: Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.

    References: http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html, http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html, http://rhn.redhat.com/errata/RHSA-2015-0113.html, http://seclists.org/oss-sec/2014/q3/639, http://secunia.com/advisories/61506, http://www.debian.org/security/2014/dsa-3081, http://www.ocert.org/advisories/ocert-2014-007.html, http://www.openwall.com/lists/oss-security/2014/09/25/11, http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html, https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273, https://security.gentoo.org/glsa/201507-07, https://security.gentoo.org/glsa/201612-36, https://www.kde.org/info/security/advisory-20140923-1.txt, http://www.ocert.org/advisories/ocert-2014-007.html, https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273, http://secunia.com/advisories/61506, http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html, http://www.securityfocus.com/bid/70093, https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html, https://usn.ubuntu.com/4587-1/

    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