CVEvulnerability
CVE-2022-42333
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-03-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-770
Description
x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).
Affected configurations
• xen xen (>= 4.11.0 <= 4.17.0)
• debian debian linux 11.0
• fedoraproject fedora 37
• fedoraproject fedora 38
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- http://www.openwall.com/lists/oss-security/2023/03/21/2 Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-428.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2023/dsa-5378 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-428.txt Vendor Advisory
- http://www.openwall.com/lists/oss-security/2023/03/21/2 Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-428.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2023/dsa-5378 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-428.txt Vendor Advisory