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    CVE-2014-6051

    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.

    Published:Sep 23, 2014
    Last Modified:Apr 12, 2025
    EPS:Sep 30, 2014
    EPSS Score:0.06605
    CVSS Score:7.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Libvncserver
    Product
    Libvncserver
    Vendor
    Oracle
    Product
    Solaris
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.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
    http://www.securityfocus.com/bid/70093
    https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273
    https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
    https://security.gentoo.org/glsa/201507-07
    https://security.gentoo.org/glsa/201612-36
    https://usn.ubuntu.com/4587-1/
    https://www.kde.org/info/security/advisory-20140923-1.txt
    http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html
    http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.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
    http://www.securityfocus.com/bid/70093
    https://github.com/newsoft/libvncserver/commit/045a044e8ae79db9244593fbce154cdf6e843273
    https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
    https://security.gentoo.org/glsa/201507-07
    https://security.gentoo.org/glsa/201612-36
    https://usn.ubuntu.com/4587-1/
    https://www.kde.org/info/security/advisory-20140923-1.txt

    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