CVE-2022-42321
6.5
MEDIUM
CVSS 3.1
EPSS 0.03%
Description
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.
How to fix CVE-2022-42321
To remediate CVE-2022-42321, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.15.4-r0 or later
- —upgrade to 4.14.5+86-g1c354767d5-1 or later
Is CVE-2022-42321 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.15.4-r0
- from 0, < 4.14.5+86-g1c354767d5-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |