SB20230816210 - Fedora 36 update for xen
Published: August 16, 2023
Security Bulletin ID
SB20230816210
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cross-thread return address predictions (CVE-ID: CVE-2022-27672)
CWE-ID: CWE-1342 - Information Exposure through Microarchitectural State after Transient Execution
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to certain AMD processors may speculatively execute instructions at an incorrect return site after an SMT mode switch that may potentially lead to information disclosure.
Remediation
Install update from vendor's website.