CVE-2015-8777

    Dashboard / Vulnerabilities / CVE-2015-8777

    CVE-2015-8777

    Published: 20 Jan 2016Last Modified: 16 Apr 2026

    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: http://www.debian.org/security/2016/dsa-3480, http://www.ubuntu.com/usn/USN-2985-1, http://www.ubuntu.com/usn/USN-2985-2, https://access.redhat.com/errata/RHSA-2017:1916, https://security.gentoo.org/glsa/201702-11, http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html, https://sourceware.org/bugzilla/show_bug.cgi?id=18928, http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html, http://www.openwall.com/lists/oss-security/2016/01/20/1, http://www.securityfocus.com/bid/81469, http://www.securitytracker.com/id/1034811

    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-2015-8777 | CVE-DB