Sept. 19, 2023, 4:45 p.m. |

Ubuntu security notices

Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii
Oleksenko discovered that some AMD processors could leak stale data from
division operations in certain situations. A local attacker could possibly
use this to expose sensitive information. (CVE-2023-20588)

It was discovered that the ARM64 KVM implementation in the Linux kernel did
not properly restrict hypervisor memory access. An attacker in a guest VM
could use this to execute arbitrary code in the host OS. (CVE-2023-21264)

It was discovered that the …

amd arm64 attacker cve data expose hypervisor implementation information kernel leak linux linux kernel local memory operations processors sensitive sensitive information usn vulnerabilities

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