CVE-2015-8777

Severity

21%

Complexity

39%

Confidentiality

48%

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.

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.

CVSS 3.0 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 2.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:P/A:N).

Overview

First reported 9 years ago

2016-01-20 05:59:00

Last updated 7 years ago

2018-01-05 02:30:00

Affected Software

GNU glibc

References

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

Exploit

FEDORA-2016-0480defc94

SUSE-SU-2016:0470

SUSE-SU-2016:0471

SUSE-SU-2016:0472

SUSE-SU-2016:0473

DSA-3480

[oss-security] 20160119 Re: CVE assignment request for security bugs fixed in glibc 2.23

81469

1034811

USN-2985-1

USN-2985-2

RHSA-2017:1916

GLSA-201702-11

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

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