Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | >= 4.9.0 |
| Debian | Debian Linux | 11.0 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/11/01/11Mailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-421.htmlPatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202402-07
- https://www.debian.org/security/2022/dsa-5272Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-421.txtPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2022/11/01/11Mailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-421.htmlPatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202402-07
- https://www.debian.org/security/2022/dsa-5272Third Party Advisory
FAQ
What is CVE-2022-42326?
CVE-2022-42326 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.] ...
How severe is CVE-2022-42326?
CVE-2022-42326 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-42326?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen, Debian Debian Linux, Fedoraproject Fedora.