Vulnerability · Published Jan 26, 2023 · Assigned by XEN
CVE-2022-42330
High 7.5
In plain English
A high-severity security flaw in xen from Xen. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.4%top 27.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | xen | 4.17.0-r2 | ALPINE-CVE-2022-42330 |
| Alpine:v3.21 | xen | 4.17.0-r2 | ALPINE-CVE-2022-42330 |
| Alpine:v3.22 | xen | 4.17.0-r2 | ALPINE-CVE-2022-42330 |
| Alpine:v3.23 | xen | 4.17.0-r2 | ALPINE-CVE-2022-42330 |
| Alpine:v3.24 | xen | 4.17.0-r2 | ALPINE-CVE-2022-42330 |
| Debian:12 | xen | 4.17.0+24-g2f8851c37f-2 | DEBIAN-CVE-2022-42330 |
| Debian:13 | xen | 4.17.0+24-g2f8851c37f-2 | DEBIAN-CVE-2022-42330 |
| Debian:14 | xen | 4.17.0+24-g2f8851c37f-2 | DEBIAN-CVE-2022-42330 |
| Ubuntu:22.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-42330 |
| Ubuntu:24.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-42330 |
| Ubuntu:25.10 | xen | no fix listed | UBUNTU-CVE-2022-42330 |
| Ubuntu:26.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-42330 |
| Ubuntu:26.10 | xen | no fix listed | UBUNTU-CVE-2022-42330 |