SB2019082026 - Use-after-free in Linux kernel

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2019082026

SB2019082026 - Use-after-free in Linux kernel

Published: August 20, 2019 Updated: September 3, 2019

Security Bulletin ID SB2019082026
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Physical access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2019-15214)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists in the Advanced Linux Sound Architecture (ALSA) subsystem in "sound/core/init.c" and "sound/core/info.c" due to the card disconnection causes certain data structures to be deleted too early. A local authenticated user with physical access to the system can exploit this vulnerability to cause a denial of service (system crash) or possibly execute arbitrary code.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Remediation

Install update from vendor's website.

References