PT-2016-3923 · Linux+5 · Linux Kernel+5

Dmitry Vyukov · Published 2016-01-13 · Updated 2024-06-15 · CVE-2015-8539

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.4

Description The issue allows local users to gain privileges or cause a denial of service via crafted keyctl commands. This is related to the security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user defined.c files.

Recommendations For Linux kernel versions prior to 4.4, update to version 4.4 or later to resolve the issue.

Exploit

Fix

DoS

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

ALT-PU-2016-1018

ALT-PU-2016-1485

CESA-2018_0151

CVE-2015-8539

OPENSUSE-SU-2016_0280-1

OPENSUSE-SU-2024:10128-1

RHSA-2018:0151

RHSA-2018:0152

RHSA-2018:0181

RHSA-2018_0151

RHSA-2018_0152

SUSE-SU-2016:0168-1

SUSE-SU-2016:0335-1

SUSE-SU-2016:0336-1

SUSE-SU-2016:0337-1

SUSE-SU-2016:0339-1

SUSE-SU-2016:0380-1

SUSE-SU-2016:0381-1

SUSE-SU-2016:0383-1

SUSE-SU-2016:0384-1

SUSE-SU-2016:0386-1

SUSE-SU-2016:0387-1

SUSE-SU-2016:0434-1

SUSE-SU-2016:0585-1

SUSE-SU-2016:0911-1

SUSE-SU-2016:1102-1

SUSE-SU-2016:1203-1

SUSE-SU-2016:1937-1

SUSE-SU-2016:2074-1

USN-3798-1

USN-3798-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 510

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/overlayfs_priv_esc.rb · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-5753.md · Exploit
• 🔥 https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-2384 · Exploit
• 🔥 https://github.com/nardholio/cve-2016-0728 · Exploit
• 🔥 https://github.com/Kagami/docker_cve-2015-2925 · Exploit
• 🔥 https://github.com/bittorrent3389/cve-2016-0728 · Exploit
• 🔥 https://github.com/EdwardOwusuAdjei/Spectre-PoC · Exploit
• 🔥 https://github.com/neuschaefer/cve-2016-0728-testbed · Exploit
• 🔥 https://github.com/geekben/cve-collections/blob/master/cve20160728poc.c · Exploit
• 🔥 https://github.com/whu-enjoy/CVE-2015-8660 · Exploit
• https://github.com/torvalds/linux/commit/096fe9eaea40a17e125569f9e657e34cdb6d73bd · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:0383-1 · Vendor Advisory
• https://usn.ubuntu.com/3798-2 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00008.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2015/12/09/1 · Patch