CVE-2015-8777

5.5 MEDIUM

Published: January 20, 2016 Modified: May 06, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html

Source: secalert@redhat.com

Exploit

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html

Source: secalert@redhat.com

http://www.debian.org/security/2016/dsa-3480

Source: secalert@redhat.com

http://www.openwall.com/lists/oss-security/2016/01/20/1

Source: secalert@redhat.com

http://www.securityfocus.com/bid/81469

Source: secalert@redhat.com

http://www.securitytracker.com/id/1034811

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2985-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2985-2

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2017:1916

Source: secalert@redhat.com

https://security.gentoo.org/glsa/201702-11

Source: secalert@redhat.com

https://sourceware.org/bugzilla/show_bug.cgi?id=18928

Source: secalert@redhat.com

http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html