PT-2016-4015 · Gnu+5 · Glibc+5

Hector Marco-Gisbert · Published 2016-01-20 · Updated 2024-06-15 · CVE-2015-8777

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions glibc versions prior to 2.23

Description The issue allows local users to bypass a pointer-guarding protection mechanism. This is achieved by setting the LD POINTER GUARD environment variable to a zero value, which is processed by the process envvars function in elf/rtld.c.

Recommendations For versions prior to 2.23, update to version 2.23 or later to resolve the issue.

Exploit

Fix

Weakness Enumeration

CWE-254

Related Identifiers

ALT-PU-2016-1135

CESA-2017_1916

CVE-2015-8777

DLA-316-1

DSA-3480-1

MGASA-2016-0079

OPENSUSE-SU-2016_0490-1

OPENSUSE-SU-2024:10154-1

RHSA-2017:1916

RHSA-2017_1916

SUSE-SU-2016:0470-1

SUSE-SU-2016:0471-1

SUSE-SU-2016:0472-1

SUSE-SU-2016:0473-1

SUSE-SU-2016:0748-1

SUSE-SU-2016:0778-1

SUSE-SU-2016:0786-1

USN-2985-1

USN-2985-2

Affected Products

Alt Linux

Centos

Red Hat

Suse

Ubuntu

Glibc

References · 147

• 🔥 https://github.com/fjserna/CVE-2015-7547 · Exploit
• 🔥 https://github.com/eSentire/cve-2015-7547-public · Exploit
• 🔥 https://github.com/jgajek/cve-2015-7547 · Exploit
• 🔥 https://github.com/cakuzo/CVE-2015-7547 · Exploit
• 🔥 http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html · Exploit
• https://ubuntu.com/security/CVE-2015-1781 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8776 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7547 · Security Note
• https://osv.dev/vulnerability/MGASA-2016-0079 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1781 · Security Note
• https://ubuntu.com/security/CVE-2014-9761 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9761 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8777 · Security Note
• https://osv.dev/vulnerability/CVE-2015-8777 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:1916 · Vendor Advisory