Buffer overflow in Xhyve
CVE-2022-35867
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (22.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Xhyve — versions 0.2.0-145-g83516a
- Xhyve_project Xhyve — versions 0.2.0
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-35867?
- CVE-2022-35867 is a medium-severity vulnerability in Xhyve, classified under Stack-based Buffer Overflow. CVSS score: 6.7/10. Published 2022-08-03.
- How severe is CVE-2022-35867?
- Medium severity. CVSS v3 base score is 6.7 out of 10.