UBUNTU-CVE-2015-8777

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    UBUNTU-CVE-2015-8777

    Published: 20 Jan 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-8777
    Aliases:
    USN-2985-1

    Summary:

    Details: The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.

    References: https://ubuntu.com/security/CVE-2015-8777, http://www.openwall.com/lists/oss-security/2015/09/05/8, http://www.openwall.com/lists/oss-security/2016/01/20/1, http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html, https://ubuntu.com/security/notices/USN-2985-1, https://www.cve.org/CVERecord?id=CVE-2015-8777

    Affected packages

    Package

    Name: eglibc

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.19-0ubuntu6.8

    Affected versions

    2.17-93ubuntu4

    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