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Ubuntu Security Notice USN-6321-1

Posted Aug 31, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6321-1 - 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-2023-3610, CVE-2023-3611, CVE-2023-3776, CVE-2023-3777, CVE-2023-3995, CVE-2023-4004, CVE-2023-4015

SHA-256 | 1d629b070b7634bff1f72ea8b938d3be648a4d6ec0907851c41c3d3277248fcf

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