NULL Pointer Dereference Affecting xen package, versions <4.17.2-r3
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Test your applications- Snyk ID SNYK-ALPINE320-XEN-7012591
- published 23 May 2024
- disclosed 5 Jan 2024
Introduced: 5 Jan 2024
CVE-2023-34323 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 xen to version 4.17.2-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
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).