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CVE-2015-8777

Date: January 19, 2016

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.

Language: C

Severity Score

Related Resources (19)

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
https://security.gentoo.org/glsa/201702-11
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
https://access.redhat.com/security/cve/CVE-2015-8777
https://security-tracker.debian.org/tracker/CVE-2015-8777
http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html
http://www.securitytracker.com/id/1034811
http://www.ubuntu.com/usn/USN-2985-1
http://www.ubuntu.com/usn/USN-2985-2
http://www.openwall.com/lists/oss-security/2016/01/20/1
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
https://sourceware.org/bugzilla/show_bug.cgi?id=18928
http://www.debian.org/security/2016/dsa-3480
http://www.securityfocus.com/bid/81469
https://nvd.nist.gov/vuln/detail/CVE-2015-8777
https://access.redhat.com/errata/RHSA-2017:1916
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
https://www.mend.io/vulnerability-database/CVE-2015-8777

Severity Score

Weakness Type (CWE)

Security Features

CWE-254

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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