CVE-2014-6053

    Dashboard / Vulnerabilities / CVE-2014-6053

    CVE-2014-6053

    Published: 15 Dec 2014Last Modified: 16 Apr 2026

    Summary:

    Details: The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

    References: http://seclists.org/oss-sec/2014/q3/639, http://secunia.com/advisories/61506, http://secunia.com/advisories/61682, http://ubuntu.com/usn/usn-2365-1, 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, https://security.gentoo.org/glsa/201507-07, http://seclists.org/oss-sec/2014/q3/639, http://www.openwall.com/lists/oss-security/2014/09/25/11, https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28, https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28, http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html, https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html, https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html, https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html, https://usn.ubuntu.com/4573-1/, 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
    CVE-2014-6053 | CVE-DB