SB2021090327 - openEuler update for kernel
Published: September 3, 2021
Security Bulletin ID
SB2021090327
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2021-38198)
CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to arch/x86/kvm/mmu/paging_tmpl.h incorrectly computes the access permissions of a shadow page. A local user can trigger an error to perform a denial of service attack.
Remediation
Install update from vendor's website.