freshclam reports wrong exit status after clamav update

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Environment

SUSE Linux Enterprise Server 12 Service Pack 3 (SLES 12 SP3)

clamav-0.100.0-33.12.1

SUSE Linux Enterprise Server 11 Service Pack 4 (SLES 11 SP4)

clamav-0.100.0-0.20.12.2

Situation

After updating to clamav, freshclam reports a wrong exist status after an update without refreshing the patterns:

clamclient:~ # freshclam -v
Current working dir is /var/lib/clamav
Max retries == 3
ClamAV update process started at Wed Sep 26 14:46:50 2018
Using IPv6 aware code
Querying current.cvd.clamav.net
TTL: 931
Software version from DNS: 0.100.1
WARNING: Your ClamAV installation is OUTDATED!
WARNING: Local version: 0.100.0 Recommended version: 0.100.1
DON'T PANIC! Read https://www.clamav.net/documents/upgrading-clamav
main.cvd version from DNS: 58
main.cvd is up to date (version: 58, sigs: 4566249, f-level: 60, builder: sigmgr)
daily.cvd version from DNS: 24983
daily.cld is up to date (version: 24983, sigs: 2100133, f-level: 63, builder: raynman)
bytecode.cvd version from DNS: 327
bytecode.cld is up to date (version: 327, sigs: 91, f-level: 63, builder: neo)
clamclient:~/PTF-2018-Sep-07-09:38:00 # echo $?
1

According to man (1) freshclam, the exit status should be zero if the database was successfully refreshed or up-to-date.

Resolution

Please contact SUSE Technical Services for a Program Temporary Fix (PTF).

Cause

The issue was introduced unintentionally in the upstream project while changing the return codes for the downloader which in return affected the exit code of freshclam.

Additional Information

https://github.com/Cisco-Talos/clamav-devel/pull/56#issuecomment-420713004

Disclaimer

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