Vulnerability · Published Oct 11, 2022 · Assigned by XEN
CVE-2022-33746
Medium 6.5
In plain English
A medium-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 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | xen | 4.17.0-r0 | ALPINE-CVE-2022-33746 |
| Alpine:v3.21 | xen | 4.17.0-r0 | ALPINE-CVE-2022-33746 |
| Alpine:v3.22 | xen | 4.17.0-r0 | ALPINE-CVE-2022-33746 |
| Alpine:v3.23 | xen | 4.17.0-r0 | ALPINE-CVE-2022-33746 |
| Alpine:v3.24 | xen | 4.17.0-r0 | ALPINE-CVE-2022-33746 |
| Debian:12 | xen | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-33746 |
| Debian:13 | xen | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-33746 |
| Debian:14 | xen | 4.16.2+90-g0d39a6d1ae-1 | DEBIAN-CVE-2022-33746 |
| Ubuntu:22.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-33746 |
| Ubuntu:24.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-33746 |
| Ubuntu:25.10 | xen | no fix listed | UBUNTU-CVE-2022-33746 |
| Ubuntu:26.04:LTS | xen | no fix listed | UBUNTU-CVE-2022-33746 |
| Ubuntu:26.10 | xen | no fix listed | UBUNTU-CVE-2022-33746 |
Affected products (as reported)
References
- https://xenbits.xenproject.org/xsa/advisory-410.txt
- http://xenbits.xen.org/xsa/advisory-410.html
- [oss-security] 20221011 Xen Security Advisory 410 v3 (CVE-2022-33746) - P2M pool freeing may take excessively long mailing-list
- FEDORA-2022-5b594b82ac vendor-advisory
- DSA-5272 vendor-advisory
- FEDORA-2022-d80cc73088 vendor-advisory
- FEDORA-2022-99af00f60e vendor-advisory
- GLSA-202402-07 vendor-advisory