CVEvulnerability
CVE-2021-38198
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-08-08
- Last modified
- 2026-10-08
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
Description
arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.
Affected configurations
• linux linux kernel (< 5.12.11)
• debian debian linux 9.0
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html Mailing List, Third Party Advisory