PT-2016-7540 · Linux+4 · Linux Kernel+4

Andrej Nemec · Published 2016-11-27 · Updated 2023-02-12 · CVE-2016-8650

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 4.8.12

Description The issue is related to the mpi powm function in the Linux kernel, which does not properly allocate memory for limb data. This can be exploited by local users to cause a denial of service, resulting in stack memory corruption and a panic, by using an add key system call for an RSA key with a zero exponent.

Recommendations For Linux kernel versions prior to 4.8.12, update to version 4.8.12 or later to resolve the issue.

Fix

DoS

RCE

Weakness Enumeration

CWE-399

CWE-20

Related Identifiers

ALT-PU-2016-2405

ALT-PU-2017-1330

CESA-2017_0933

CESA-2018_1854

CVE-2016-8650

MGASA-2016-0415

MGASA-2017-0003

MGASA-2017-0004

RHSA-2017:0931

RHSA-2017:0932

RHSA-2017:0933

RHSA-2017_0931

RHSA-2017_0933

RHSA-2018:1854

RHSA-2018_1854

USN-3422-1

USN-3422-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Ubuntu

References · 62

• https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073 · Patch
• https://ubuntu.com/security/CVE-2016-10044 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9754 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0415.html · Security Note
• https://ubuntu.com/security/CVE-2016-9604 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2017-0004 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-0933.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3422-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9178 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2017-0004.html · Security Note
• https://ubuntu.com/security/CVE-2017-5970 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-1000251 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-8650 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7097 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9191 · Vendor Advisory