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Ubuntu Security Notice USN-6324-1

Posted Aug 31, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6324-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information.

tags | advisory, local

systems | linux, ubuntu

advisories | CVE-2022-40982, CVE-2023-20593, CVE-2023-3609, CVE-2023-3611, CVE-2023-3776

SHA-256 | 3ca0e623afd0d243fb7f341e17d4452d9815d519fad76cb9d0bbd4482e76e276

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