sudo is vulnerable to escalation of privilege. An attacker is able to exploit the vulnerability by replacing a temporary file with a symlink to an arbitary file target in selinux_edit_copy_tfiles in sudoedit
bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23240
lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
lists.fedoraproject.org/archives/list/[email protected]/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/
lists.fedoraproject.org/archives/list/[email protected]/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/
security-tracker.debian.org/tracker/CVE-2021-23240
security.gentoo.org/glsa/202101-33
security.netapp.com/advisory/ntap-20210129-0010/
www.sudo.ws/stable.html#1.9.5