CVE-2017-1088 Information disclosure in FreeBSD

Low 3.3 Published 16 Nov 2017 Updated 16 Sep 2024

A local attacker can read uninitialized kernel stack memory via the kld_file_stat structure, potentially exposing sensitive kernel data.

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-2017-1088?

CVE-2017-1088 is a low-severity vulnerability in Freebsd Freebsd, published on 16 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p4, 11.0-RELEASE-p15, 10.4-STABLE, 10.4-RELEASE-p3, and 10.3-RELEASE-p24, the kernel does not properly clear the memory of the kld_file_stat structure before filling the data. Since the structure filled by the kernel is allocated on the kernel stack and copied to userspace, a leak of information from the kernel stack is possible. As a result, some bytes from the kernel stack can be observed in userspace.

Weakness: CWE-200

Which versions are affected by CVE-2017-1088?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2017-1088?

No fix has been published for CVE-2017-1088 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-1088 being exploited?

There is no known exploitation of CVE-2017-1088 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-j3c8-745f-4r7j.