CVE-2022-42319

 

Published at: - 01-11-2022 02:15

Last modified: - 24-11-2022 04:15

Total changes: - 5

Description

Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://xenbits.xenproject.org/xsa/advisory-416.txt
• http://xenbits.xen.org/xsa/advisory-416.html
• [oss-security] 20221101 Xen Security Advisory 416 v2 (CVE-2022-42319) - Xenstore: Guests can cause Xenstore to not free temporary memory-Mailing List, Third Party Advisory
• DSA-5272-Third Party Advisory
• FEDORA-2022-07438e12df-Mailing List, Third Party Advisory
• FEDORA-2022-99af00f60e-Mailing List, Third Party Advisory
• FEDORA-2022-9f51d13fa3-

 

Keywords

NVD

 

CVE-2022-42319

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures