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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html ↗
- https://access.redhat.com/errata/RHSA-2017:1916 ↗
- http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html ↗
- http://www.ubuntu.com/usn/USN-2985-2 ↗
- http://www.openwall.com/lists/oss-security/2016/01/20/1 ↗
- https://security.gentoo.org/glsa/201702-11 ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html ↗
- http://www.securityfocus.com/bid/81469 ↗
- https://sourceware.org/bugzilla/show_bug.cgi?id=18928 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html ↗
- http://www.debian.org/security/2016/dsa-3480 ↗
- http://www.ubuntu.com/usn/USN-2985-1 ↗
- http://www.securitytracker.com/id/1034811 ↗