CVE-2022-42321
MEDIUMXen - Denial of Service via Xenstore Recursion Stack Exhaustion
Title source: llmDescription
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
References (8)
Core 8
Core References
Patch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-418.html
Patch, Vendor Advisory
https://xenbits.xenproject.org/xsa/advisory-418.txt
Mailing List, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2022/11/01/8
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5272
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202402-07
Scores
CVSS v3
6.5
EPSS
0.0027
EPSS Percentile
18.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Details
CWE
CWE-674
Status
published
Products (5)
debian/debian_linux
11.0
fedoraproject/fedora
35
fedoraproject/fedora
36
fedoraproject/fedora
37
xen/xen
Published
Nov 01, 2022
Tracked Since
Feb 18, 2026