PT-2016-4043 · Linux+3 · Linux Kernel+3

Miroslav Vadkerti · Published 2016-01-13 · Updated 2018-01-05 · CVE-2015-8844

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.3.5 on powerpc platforms

Description The issue allows local users to cause a denial of service, resulting in a TM Bad Thing exception and panic, via a crafted application. This is due to the signal implementation not checking for an MSR with both the S and T bits set.

Recommendations For Linux kernel versions prior to 4.3.5 on powerpc platforms: update to version 4.3.5 or later to resolve the issue.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2016-1018

ALT-PU-2016-1485

CESA-2016_2574

CVE-2015-8844

RHSA-2016:2574

RHSA-2016:2584

RHSA-2016_2574

RHSA-2016_2584

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

References · 21

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/overlayfs_priv_esc.rb · Exploit
• 🔥 https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-2384 · Exploit
• 🔥 https://github.com/Kagami/docker_cve-2015-2925 · Exploit
• 🔥 https://github.com/whu-enjoy/CVE-2015-8660 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2015-8844 · Security Note
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-8844 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2016-2584.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-8844 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2015-8844 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-8844 · Security Note
• https://ubuntu.com/security/CVE-2015-8844 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2016-2574.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2016-2574.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-8844 · Vendor Advisory