NULL pointer dereference in Linux D-Bus Message Broker - CVE-2022-31213

 

NULL pointer dereference in Linux D-Bus Message Broker - CVE-2022-31213

Published: September 21, 2022


Vulnerability identifier: #VU67528
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2022-31213
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vendor: bus1
Affected software:
Linux D-Bus Message Broker

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when handling a malformed XML config file. A local user can supply a specially crafted XML file to the service and perform a denial of service (DoS) attack.


How to mitigate CVE-2022-31213

Install update from vendor's website.

Sources