CVE-2021-38198

CVE-2021-38198

Medium · published August 9, 2021

CVSS v3.1
5.5
EPSS
0%
Percentile
38.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00450 · 38.1th percentile
Published
2021-08-09T00:15Z
Affected products (2)
ProductVersionsFixed in
linux/linux_kernel< 5.12.115.12.11
debian/debian_linuxall versions—
References (8)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 · [email protected]https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7 · [email protected]https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html · [email protected]https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html · [email protected]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 · af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 08 AUG 19:28Z
    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…
    cvelistv5