SB2018081716 - Denial of service in GNOME Display Manager
Published: August 17, 2018
Security Bulletin ID
SB2018081716
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free error (CVE-ID: CVE-2018-14424)
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to use-after-free error when unproper unexporting of display objects from its D-Bus interface when they are destroyed. A local attacker can use a specially crafted sequence of D-Bus method calls, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.