ALPINE-CVE-2022-33748

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2022-33748
Published: 11 Oct 2022, 13:15
Last modified:03 Dec 2025, 22:49

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.6 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 Oct 2022, 13:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:49
Last Modified
Vulnerability information updated

Description

lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be acquired nested within one another, but in respectively opposite order. With suitable timing between the involved grant copy operations this may result in the locking up of a CPU.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.6CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Systems

  • alpine•xen

    < 4.15.4-r0 | < 4.15.4-r0 | < 4.16.3-r0 | < 4.16.3-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0 | < 4.17.0-r0

References (1)