CVE-2019-5595 Information disclosure in FreeBSD

Medium 5.5 Published 12 Feb 2019 Updated 4 Aug 2024

Attackers can read sensitive kernel data due to unsanitized registers during system call returns in FreeBSD.

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-2019-5595?

CVE-2019-5595 is a medium-severity vulnerability in Freebsd Freebsd, published on 12 Feb 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In FreeBSD before 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781), and 12.0-RELEASE-p3, kernel callee-save registers are not properly sanitized before return from system calls, potentially allowing some kernel data used in the system call to be exposed.

Weakness: CWE-459

Which versions are affected by CVE-2019-5595?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2019-5595?

No fix has been published for CVE-2019-5595 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-5595 being exploited?

There is no known exploitation of CVE-2019-5595 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-3gp9-w5p3-3r4r.