CVE-2022-42310
Medium
Description
Xenstore: Guests can create orphaned Xenstore nodes By creating multiple nodes inside a transaction resulting in an error, a malicious guest can create orphaned nodes in the Xenstore data base, as the cleanup after the error will not remove all nodes already created. When the transaction is committed after this situation, nodes without a valid parent can be made permanent in the data base.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Xen
PublishedNov 1, 2022
First seenNov 1, 2022
How to fix
Update
- xen xen4.13.0 or later
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 | 4.9.0 ≤ v < 4.13.0 | 4.13.0 |
| debian debian_linux | 11.0 | — |
| fedoraproject fedora | 35, 36, 37 | — |
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