Bug 1219903 (CVE-2023-31347) - VUL-0: CVE-2023-31347: kernel-firmware: Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity.
Summary: VUL-0: CVE-2023-31347: kernel-firmware: Due to a code bug in Secure_TSC, SEV ...
Status: RESOLVED INVALID
Alias: CVE-2023-31347
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Minor
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/393994/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-31347:2.3:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-02-14 08:28 UTC by SMASH SMASH
Modified: 2024-02-20 16:46 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---
tiwai: needinfo? (ddavis)

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description SMASH SMASH 2024-02-14 08:28:08 UTC 
Due to a code bug in
Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a
guest to observe an incorrect TSC when Secure TSC is enabled potentially
resulting in a loss of guest integrity.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-31347
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3007
https://www.cve.org/CVERecord?id=CVE-2023-31347
Comment 7 Thomas Leroy 2024-02-20 16:46:45 UTC 
Many thanks Darren for checking!
This will be fixed by a manufacturer BIOS update. Closing