CVE-2022-42321
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Xen
PublishedNov 1, 2022
First seenNov 1, 2022
How to fix
Vendor advisories
- debian.org/security/2022/dsa-5272
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
- security.gentoo.org/glsa/202402-07
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xen xen | No range specified | — |
| debian debian_linux | 11.0 | — |
| fedoraproject fedora | 35, 36, 37 | — |
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