New Linux kernel bug lets you get root on most modern distros

Unprivileged attackers can gain root privileges by exploiting a local privilege escalation (LPE) vulnerability in default configurations of the Linux Kernel’s filesystem layer on vulnerable devices. As discovered by Qualys researchers, the LPE security flaw tracked as CVE-2021-33909 (dubbed Sequoia) is present in the filesystem layer used to manage user data, a feature universally used by all major (Linux) operating systems.

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