Ubuntu Security Notice USN-6548-4

Ubuntu Security Notice 6548-4 - It was discovered that Spectre-BHB mitigations were missing for Ampere processors. A local attacker could potentially use this to expose sensitive information. It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service.

attacker device expose handling information kernel linux linux kernel local missing mitigations notice out-of-bounds processors race race condition security security notice sensitive sensitive information spectre subsystem ubuntu usb usn vulnerability