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CVE-2021-38198

Date: August 8, 2021

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.

Severity Score

5.5

Related Resources (9)

Url: https://access.redhat.com/security/cve/CVE-2021-38198

Url: https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-38198

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-38198

Url: https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

Url: https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Url: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11

Url: https://security-tracker.debian.org/tracker/CVE-2021-38198

Url: https://www.mend.io/vulnerability-database/CVE-2021-38198

Severity Score

5.5

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	2.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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