Vulnerability · Published Aug 3, 2022 · Assigned by zdi
CVE-2022-35867
High 7.5
In plain English
A high-severity stack buffer overflow in xhyve from xhyve. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
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.
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
References
- https://www.zerodayinitiative.com/advisories/ZDI-22-949/ x_refsource_MISC