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Ubuntu Security Notice USN-5803-1

Posted Jan 13, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5803-1 - Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service or execute arbitrary code. Tamas Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

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

systems | linux, ubuntu

advisories | CVE-2022-3643, CVE-2022-42896, CVE-2022-4378, CVE-2022-45934

SHA-256 | 4a901d23fe04ca230ee9b786ae58b58154f66077be0ff2e81efffbae06b991af

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