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Ubuntu Security Notice USN-6397-1

Posted Sep 27, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6397-1 - 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. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local

systems | linux, ubuntu

advisories | CVE-2022-40982, CVE-2023-2002, CVE-2023-20593, CVE-2023-21255, CVE-2023-2163, CVE-2023-2269, CVE-2023-31084, CVE-2023-3268, CVE-2023-35823, CVE-2023-35824, CVE-2023-35828, CVE-2023-3609, CVE-2023-3611, CVE-2023-3776

SHA-256 | d13a796719bdfb63b4fcf139769434d3580bd60dc34168be371834a19bf9ba32

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