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Ubuntu Security Notice USN-6093-1

Posted May 22, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6093-1 - It was discovered that the Traffic-Control Index implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed. It was discovered that the Traffic-Control Index implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local

systems | linux, ubuntu

advisories | CVE-2022-3108, CVE-2022-3903, CVE-2022-4129, CVE-2023-0458, CVE-2023-1073, CVE-2023-1074, CVE-2023-1281, CVE-2023-1829, CVE-2023-26545

SHA-256 | a978cac588db84607cc6b04a9d12c7eba418d67966b505fd71ab931daba3fd00

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