SB2019112911 - Remote code execution in Linux kernel



SB2019112911 - Remote code execution in Linux kernel

Published: November 29, 2019 Updated: January 27, 2020

Security Bulletin ID SB2019112911
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2019-14901)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in Marvell WiFi chip driver within the "mwifiex_process_tdls_action_frame()" function in "marvell/mwifiex/tdls.c". A remote attacker on the local network can send a specially crafted network traffic, trigger out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.