openSUSE-SU-2021:1591-1

This update for fetchmail fixes the following issues:

• CVE-2021-36386: Fixed DoS or information disclosure in some configurations (bsc#1188875).

• CVE-2021-39272: Fixed STARTTLS session encryption bypassing (fetchmail-SA-2021-02) (bsc#1190069).

• Update to 6.4.22 (bsc#1152964, jsc#SLE-18159, jsc#SLE-17903, jsc#SLE-18059)

• Remove all python2 dependencies (bsc#1190896).

• De-hardcode /usr/lib path for launch executable (bsc#1174075).

• Added hardening to systemd service(s) (bsc#1181400).

This update was imported from the SUSE:SLE-15:Update update project.