Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evicting cache lines during SNP memory validation A vulnerability related to SNP cache coherence requires a cache line eviction mitigation mechanism when validating memory after a page state change to private. The specif...

SEV-SNP Guest Stack Pointer Corruption Vulnerability

Summary Researchers have reported a CPU-caused stack corruption issue caused by flipping an undocumented MSR bit. AMD believes that this vulnerability occurs due to inadequate access controls, which fail to prevent the hypervisor from setting an internal configuration bit. This attack could allow...

CVE-2024-21978

A flaw was found in the AMD firmware. This vulnerability allows a malicious hypervisor to read or overwrite guest memory, potentially leading to data leakage or data corruption. Mitigation Mitigation for this issue is either not available or the currently available options do not meet the Red Hat...

PT-2024-1555 · Amd · Amd Sev-Snp

Name of the Vulnerable Software and Affected Versions: AMD SEV-SNP affected versions not specified Description: A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests, potentially resulting in guests not receiving expected debug information. The issue is related to the...