PT-2016-4081 · Linux+4 · Linux Kernel+4

Dmitry Vyukov · Published 2016-02-20 · Updated 2023-02-13 · CVE-2015-8970

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:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.4.2

Description The issue allows local users to cause a denial of service, resulting in a system crash due to a NULL pointer dereference. This occurs when a crafted application does not supply a key, related to the lrw crypt function.

Recommendations For Linux kernel versions prior to 4.4.2, update to version 4.4.2 or later to resolve the issue.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2016-1137

ALT-PU-2016-1485

CESA-2017_1842

CVE-2015-8970

RHSA-2017:1842

RHSA-2017:2077

RHSA-2017:2437

RHSA-2017:2444

RHSA-2017_1842

RHSA-2017_2077

SUSE-SU-2017:0494-1

SUSE-SU-2017:1301-1

SUSE-SU-2017:2342-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 354

• 🔥 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/Stack-Clash.md · Exploit
• 🔥 https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-2384 · Exploit
• 🔥 https://github.com/hardenedlinux/offensive_poc/tree/master/CVE-2017-8890 · Exploit
• 🔥 https://github.com/thinkycx/CVE-2017-8890 · Exploit
• 🔥 https://github.com/beraphin/CVE-2017-8890 · Exploit
• 🔥 https://github.com/RicterZ/PIE-Stack-Clash-CVE-2017-1000253 · Exploit
• 🔥 https://github.com/Kagami/docker_cve-2015-2925 · Exploit
• 🔥 https://github.com/whu-enjoy/CVE-2015-8660 · Exploit
• https://github.com/torvalds/linux/commit/dd504589577d8e8e70f51f997ad487a4cb6c026f · Patch
• https://access.redhat.com/errata/RHSA-2017:2077 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2444 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-8970 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-8970 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0494-1 · Vendor Advisory