Linux kernel 安全漏洞

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A denial of service vulnerability exists in arch/x86/kvm/svm/sev.c in Linux kernel versions prior to 5.9. An attacker...

MGASA-2019-0207 Updated microcode package fixes security vulnerability

Secure Encrypted Virtualization SEV on Advanced Micro DevicesAMD Platform Security Processor PSP; aka AMD Secure Processor or AMD-SP 0.17 build 11 and earlier has an insecure cryptographic implementation. This update provides Amd SEV Firmware to 0.17 build 22 CVE-2019-9836. It also updates the...

AMD Secure Encrypted Virtualization (SEV) Key Recovery Vulnerability

AMD Secure Encrypted Virtualization SEV is a hardware memory encryption feature. SEV protects guest virtual machines from the hypervisor, provides confidentiality guarantees at runtime and remote attestation at launch time. The SEV elliptic-curve ECC implementation was found to be vulnerable to a...

CVE-2019-9836

Secure Encrypted Virtualization SEV on Advanced Micro Devices AMD Platform Security Processor PSP; aka AMD Secure Processor or AMD-SP 0.17 build 11 and earlier has an insecure cryptographic implementation...

SEVered Attack Extracts the Memory of AMD-Encrypted VMs

UPDATE Virtual machines that use AMD’s Secure Encrypted Virtualization SEV, a hardware-based encryption scheme, have been found to be vulnerable to the same malicious hypervisor attacks that can affect all processors. A successful attack can extract the full contents of their main memory in...

Researchers Defeat AMD's SEV Virtual Machine Encryption

German security researchers claim to have found a new practical attack against virtual machines VMs protected using AMD's Secure Encrypted Virtualization SEV technology that could allow attackers to recover plaintext memory data from guest VMs. AMD's Secure Encrypted Virtualization SEV technology...

Researchers Defeat AMD's SEV Virtual Machine Encryption

German security researchers claim to have found a new practical attack against virtual machines VMs protected using AMD's Secure Encrypted Virtualization SEV technology that could allow attackers to recover plaintext memory data from guest VMs. AMD's Secure Encrypted Virtualization SEV technology...