CVE-2023-34323: xenstored: A transaction conflict can crash C Xenstored
First published: Tue Oct 10 2023(Updated: )
When a transaction is committed, C Xenstored will first check the quota is correct before attempting to commit any nodes. It would be possible that accounting is temporarily negative if a node has been removed outside of the transaction. Unfortunately, some versions of C Xenstored are assuming that the quota cannot be negative and are using assert() to confirm it. This will lead to C Xenstored crash when tools are built without -DNDEBUG (this is the default).
Credit: security@xen.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen XAPI | <4.17.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-34323?
CVE-2023-34323 has been classified with a moderate severity level due to its implications on transaction integrity.
How do I fix CVE-2023-34323?
To mitigate CVE-2023-34323, it is recommended to upgrade to a version of Xen that is later than 4.17.0.
What versions of Xen are affected by CVE-2023-34323?
CVE-2023-34323 affects versions of Xen up to 4.17.0, including the Xen unstable branch.
What type of vulnerability is CVE-2023-34323?
CVE-2023-34323 is a transaction handling vulnerability that can lead to incorrect quota accounting.
Who should be concerned about CVE-2023-34323?
Administrators using affected versions of Xen should be concerned about CVE-2023-34323 and should take corrective actions.
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