The 2021 Pwnie Nominee For Best Privilege Escalation Bug

Sequoia: A deep root in Linux’s filesystem layer

Researcher Name: Qualys

Link: https://www.qualys.com/2021/07/20/cve-2021-33909/sequoia-local-privilege-escalation-linux.txt

CVE: CVE-2021-33909

Text: A size_t-to-int conversion vulnerability in the Linux kernel’s filesystem layer in all versions of Linux >= 3.16. Introduced in July 2014