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Canonical today released new major Linux kernel updates for all supported Ubuntu releases, including Ubuntu 21.10, 20.04 LTS, and 18.04 LTS, to address up to 22 security vulnerabilities in supported kernels.
The biggest threat patched in this new Linux kernel security update for Ubuntu systems is CVE-2022-0435, a stack-based buffer overflow vulnerability discovered by Samuel Page in Linux kernel’s TIPC (Transparent Inter-Process Communication) protocol implementation, which could allow a remote attacker to cause a denial of service (system crash) on installations that have a TIPC bearer configured. This security issue affected all supported Ubuntu systems and kernels.
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