SB2022082329 - Missing release of memory after effective lifetime in Linux kernel



SB2022082329 - Missing release of memory after effective lifetime in Linux kernel

Published: August 23, 2022

Security Bulletin ID SB2022082329
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Missing release of memory after effective lifetime (CVE-ID: CVE-2021-3736)

The vulnerability allows a local user to gain access to sensitive information.

A flaw was found in the Linux kernel. A memory leak problem was found in mbochs_ioctl in samples/vfio-mdev/mbochs.c in Virtual Function I/O (VFIO) Mediated devices. This flaw could allow a local attacker to leak internal kernel information.


Remediation

Install update from vendor's website.