CVE-2015-6806

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    CVE-2015-6806

    Published: 28 Sept 2015Last Modified: 16 Apr 2026

    Summary:

    Details: The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value.

    References: http://www.debian.org/security/2015/dsa-3352, https://savannah.gnu.org/bugs/?45713, http://www.openwall.com/lists/oss-security/2015/09/03/11, https://savannah.gnu.org/bugs/?45713, http://git.savannah.gnu.org/cgit/screen.git/commit/?id=b7484c224738247b510ed0d268cd577076958f1b, http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00001.html, http://www.openwall.com/lists/oss-security/2015/09/01/1, http://www.openwall.com/lists/oss-security/2015/09/03/4, https://usn.ubuntu.com/3996-1/

    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-2015-6806 | CVE-DB