CVE-2022-23035: debian debian_linux Incomplete Cleanup
Vulnerability summary
CVE-2022-23035 is a medium (CVSS 4.7) Incomplete Cleanup vulnerability in debian debian_linux. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 28.8% of scored vulnerabilities.
Not severe (CVSS 4.6, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 11Timeline
- 25-01-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
29%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.35% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- xen< 4.16.0+51-g0941d6cb-1
- debian_linuxEOL11.0
Alpine1 product
- xen≥ 4.6.0, < 4.13.4-r3 | ≥ 4.6.0, < 4.14.5-r0 | ≥ 4.6.0, < 4.15.2-r0 | ≥ 4.6.0, < 4.16.1-r0
Fedoraproject1 product
- fedoraEOL34
Ubuntu1 product
- xenAll versions (No fix recorded)
Xen1 product
- xen≥ 4.6.0 (No fix recorded)
5 vendors · 6 products
References
10 links- www.openwall.com/lists/oss-security/2022/01/25/4Mailing ListX Refsource MLISTPatchThird Party Advisory
