Vulnerability identifier: #VU73893
Vulnerability risk: Medium
CVSSv3.1: 5.8 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Xen
Server applications /
Virtualization software
Vendor: Xen Project
Description
The vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when guests are running in the shadow mode. An attacker with access to the guest OS can trigger a use-after-free error and escalate privileges on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Xen: All versions
External links
http://xenbits.xenproject.org/xsa/advisory-427.txt
http://www.openwall.com/lists/oss-security/2023/03/21/1
http://xenbits.xen.org/xsa/advisory-427.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.