Vulnerability identifier: #VU64446

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26362

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to race condition in typeref acquisition Xen. A remote attacker can execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Xen: 4.13.0 - 4.16.1

---

External links
http://www.openwall.com/lists/oss-security/2022/06/09/3
http://xenbits.xenproject.org/xsa/advisory-401.txt
http://xenbits.xen.org/xsa/advisory-401.html

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.