🛡️ CVE-2022-42319
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-401 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE CWE-401
Public Exploit ✅ No
Source NVD
Published 2022-11-01
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
debian-linux — —
fedora — —
xen 4.9.0 —

References

Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/11/01/6
Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/11/01/6

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