#VU67528 NULL pointer dereference in Linux D-Bus Message Broker


Published: 2022-09-21

Vulnerability identifier: #VU67528

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-31213

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Linux D-Bus Message Broker
Universal components / Libraries / Libraries used by multiple products

Vendor: bus1

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux D-Bus Message Broker: 1 - 30


CPE

External links
http://sec-consult.com/vulnerability-lab/advisory/memory-corruption-vulnerabilities-dbus-broker/
http://github.com/bus1/dbus-broker/compare/v30...v31


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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