CVE-2018-17160 Memory corruption in FreeBSD
A guest OS can exploit insufficient bounds checking in bhyve to overwrite host memory, potentially executing arbitrary code as root.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-17160?
CVE-2018-17160 is a critical memory corruption vulnerability in Freebsd Freebsd, published on 4 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to overwrite memory in the bhyve host possibly permitting arbitrary code execution. A guest OS using a firmware image can cause the bhyve process to crash, or possibly execute arbitrary code on the host as root.
Weakness: CWE-787
Which versions are affected by CVE-2018-17160?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2018-17160?
No fix has been published for CVE-2018-17160 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-17160 being exploited?
There is no known exploitation of CVE-2018-17160 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-83xj-2vf9-49hq.