Use-after-free in D-Bus - #VU49165

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU49165

Use-after-free in D-Bus - #VU49165

Published: December 28, 2020


Vulnerability identifier: #VU49165
CSH Severity: Low
CVSS v4: 7.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error when processing different usernames with the same numeric uid. A local user with ability to change own uid can trigger a use-after-free error and escalate privileges on the system.



Affected software

D-Bus
Gentoo Linux

Remediation

Install updates from vendor's website.

D-Bus - update to 1.12.20

External References

Related Security Bulletins