CVE-2022-35867 Memory corruption in xhyve
Local attackers with guest code execution can escalate privileges to the hypervisor via a stack buffer overflow in the e1000 device.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-35867?
CVE-2022-35867 is a high-severity memory corruption vulnerability in xhyve, published on 3 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability allows local attackers to escalate privileges on affected installations of xhyve. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the e1000 virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-15056.
Weakness: CWE-121
Which versions are affected by CVE-2022-35867?
It affects 1 product.
Products include Xhyve Project Xhyve.
How do I fix CVE-2022-35867?
No fix has been published for CVE-2022-35867 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-2022-35867 being exploited?
There is no known exploitation of CVE-2022-35867 in the wild and no public exploit code.
Other vulnerabilities in xhyve
Sources
Also known as GHSA-hpw9-grqm-8q7c.