CVE-2019-5604 Memory corruption in FreeBSD
A malicious guest can trigger an out-of-bounds read in the bhyve XHCI device, causing a system crash or leaking host memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-5604?
CVE-2019-5604 is a critical memory corruption vulnerability in Freebsd Freebsd, published on 26 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In FreeBSD 12.0-STABLE before r350246, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350247, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, the emulated XHCI device included with the bhyve hypervisor did not properly validate data provided by the guest, allowing an out-of-bounds read. This provides a malicious guest the possibility to crash the system or access system memory.
Weakness: CWE-125
Which versions are affected by CVE-2019-5604?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2019-5604?
No fix has been published for CVE-2019-5604 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-2019-5604 being exploited?
There is no known exploitation of CVE-2019-5604 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-77h2-r2jh-wgq6.