UBUNTU-CVE-2016-4491

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    UBUNTU-CVE-2016-4491

    Published: 24 Feb 2017Last Modified: 20 May 2026
    Upstream:
    CVE-2016-4491
    Aliases:
    USN-3337-1
    USN-3367-1
    USN-3368-1

    Summary:

    Details: The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a buffer overflow, related to a node having "itself as ancestor more than once."

    References: https://ubuntu.com/security/CVE-2016-4491, https://gcc.gnu.org/ml/gcc-patches/2016-05/msg00105.html, https://ubuntu.com/security/notices/USN-3337-1, https://ubuntu.com/security/notices/USN-3368-1, https://ubuntu.com/security/notices/USN-3367-1, https://ubuntu.com/security/notices/USN-4336-2, https://www.cve.org/CVERecord?id=CVE-2016-4491

    Affected packages

    Package

    Name: gdb

    Purl: pkg:deb/ubuntu/gdb?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.7.1-0ubuntu5~14.04.3

    Affected versions

    7.6.1-0ubuntu3
    7.6.1-1ubuntu1
    7.6.50.20131218-0ubuntu1

    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
    UBUNTU-CVE-2016-4491 | CVE-DB