xen: Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operatio...
CVE-2022-42321 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-42321, released November 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| xen · Debian 12.15 (bookworm) | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-42321 | Nov 1, 2022 |
| xen · Debian 13.5 (trixie) | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-42321 | Nov 1, 2022 |
| xen · Debian 14 | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-42321 | Nov 1, 2022 |
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