AMD CPU (DIV0): Division-by-zero leaves stale quotient data readable across contexts - confidentiality loss on Zen 1

CVE-2023-20588Kernel, userspace & hypervisorcurated

Impact

Division-by-zero leaves stale quotient data readable across contexts - confidentiality loss on Zen 1

Who can reach it

Any tenant process in a container; tenant VM guest

What to do

Kernel mitigation + reboot; low perf cost

References

https://access.redhat.com/security/cve/CVE-2023-20588

This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.