CVE-2022-33746: debian debian_linux Improper Resource Shutdown or Release
Vulnerability summary
CVE-2022-33746 is a medium (CVSS 6.5) Improper Resource Shutdown or Release vulnerability in debian debian_linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.9% of scored vulnerabilities.
Not severe (CVSS 6.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 11Timeline
- 11-10-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- xen< 4.16.2+90-g0d39a6d1ae-1
- debian_linuxEOL11.0
Alpine1 product
- xen≥ 4.13.0, < 4.15.4-r0 | ≥ 4.13.0, < 4.16.3-r0 | ≥ 4.13.0, < 4.17.0-r0
Fedoraproject1 product
- fedoraEOL35 | 36 | 37
Ubuntu1 product
- xenAll versions (No fix recorded)
Xen1 product
- xen≥ 4.13.0, ≤ 4.16.1
5 vendors · 6 products
References
13 links- www.openwall.com/lists/oss-security/2022/10/11/3Mailing ListREPORTMitigationPatchThird Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- security.gentoo.org/glsa/202402-07Vendor Advisory