#VU23424 Resource management error in OpenBSD - CVE-2019-19520
Published: December 5, 2019
Vulnerability identifier: #VU23424
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-19520
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
OpenBSD
OpenBSD
Software vendor:
OpenBSD
OpenBSD
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists within the xlock in OpenBSD 6.6, due to xenocara/lib/mesa/src/loader/loader.c mishandles dlopen. A local user can provide a specially crafted LIBGL_DRIVERS_PATH environment variable and gain privileges of the auth group.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.