CVE-2022-42326

Name
CVE-2022-42326
Description
Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://xenbits.xenproject.org/xsa/advisory-421.txt
CONFIRM http://xenbits.xen.org/xsa/advisory-421.html
MLIST http://www.openwall.com/lists/oss-security/2022/11/01/11
DEBIAN https://www.debian.org/security/2022/dsa-5272
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* xen >= 4.9.0 <= None

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
xen 3.16-main 4.16.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen 3.13-main 4.14.5-r7 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen 3.15-main 4.15.4-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
xen 3.14-main 4.15.4-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
xen 3.17-main 4.16.2-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen edge-main 4.16.2-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable