CVE-2019-19520 Privilege escalation in n/a
Local attackers can escalate privileges to the auth group in OpenBSD by exploiting a mishandled environment variable in the xlock utility.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-19520?
CVE-2019-19520 is a high-severity vulnerability in Openbsd Openbsd, published on 4 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGL_DRIVERS_PATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen.
Weakness: CWE-863
Which versions are affected by CVE-2019-19520?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2019-19520?
No fix has been published for CVE-2019-19520 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-19520 being exploited?
There is no known exploitation of CVE-2019-19520 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-jhm5-r427-j4rc.