#VU63435 Memory leak in Xen - CVE-2022-26356
Published: May 19, 2022 / Updated: May 19, 2022
Vulnerability identifier: #VU63435
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-26356
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Xen
Xen
Software vendor:
Xen Project
Xen Project
Description
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due to racy interactions between dirty vram tracking and paging log dirty hypercalls. A local user can force the application to leak memory and perform denial of service attack.
Remediation
Install updates from vendor's website.
External links
- https://xenbits.xenproject.org/xsa/advisory-397.txt
- http://xenbits.xen.org/xsa/advisory-397.html
- http://www.openwall.com/lists/oss-security/2022/04/05/1
- https://www.debian.org/security/2022/dsa-5117
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/