CVE-2022-42330
7.5
HIGH
CVSS 3.1
EPSS 0.31%
Description
Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.
How to fix CVE-2022-42330
To remediate CVE-2022-42330, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.17.0-r2 or later
- —upgrade to 4.17.0+24-g2f8851c37f-2 or later
Is CVE-2022-42330 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.17.0-r2
- from 0, < 4.17.0+24-g2f8851c37f-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |