https://seclists.org/oss-sec/2023/q3/112: Xen Security Advisory 433 v3 (CVE-2023-20593) - x86/AMD: Zenbleed
Published Aug 16, 2023
·Updated
Affected Software
3 affected components
XEN Xen
Linux Linux kernel
AMD Zen2 microarchitecture
Frequently Asked Questions
1
What is the severity of CVE-2023-20593?
CVE-2023-20593 is considered a high-severity vulnerability due to potential unauthorized data leakage.
2
How do I fix CVE-2023-20593?
To fix CVE-2023-20593, ensure you apply the latest microcode updates provided by AMD or your system vendor.
3
What systems are affected by CVE-2023-20593?
CVE-2023-20593 primarily affects systems utilizing the AMD Zen2 microarchitecture.
4
What type of vulnerability is CVE-2023-20593?
CVE-2023-20593 is a speculative execution vulnerability that can allow unintended information disclosure.
5
Is there a workaround for CVE-2023-20593 if microcode is not available?
If microcode updates are not available, disabling certain features related to speculative execution can act as a temporary workaround.