[clamav-users] Malformed database issue

Jay Hart jhart at kevla.org
Sun Jul 15 19:49:14 EDT 2018


> Hey Jay,
>
>
> Not sure which it is referring to db wise, but deleting main.cvd, daily, bytecode and mirror.dat
> should fix it after another freshclam.
>
>
> Thank you,
>
>
> Tom M

Tom,

I removed all files from /var/lib/clamav, reran freshclam (freshclam -v), and it did not resolve
the issue.

Jay


>
> On 7/15/18, 5:05 PM, "clamav-users on behalf of Jay Hart"
> <clamav-users-bounces at lists.clamav.net on behalf of jhart at kevla.org> wrote:
>
>     Hello and good afternoon,
>
>     Yessterday on a Centos 6.10 server I ran the software updater application which indicated 134
>     packages needed to be updated, one of which was Clamav.
>
>     The updater ran fine and the machine was rebooted. Upon reboot Clamav failed to run. This was
> due
>     to the deprecated option "AllowSupplementaryGroups" being enabled. Once I disabled this
> Clamav
>     would run, but I also was receiving a second error, which I have not been able to resolve.
>
>     It occurs when Freshclam queries the server for updated virus database files. I have enabled
>     logging for libclamav when freshclam runs to provide additional details.
>
>     ClamAV update process started at Sun Jul 15 16:27:39 2018
>     Using IPv6 aware code
>     Querying current.cvd.clamav.net
>     TTL: 611
>     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     WARNING: Your ClamAV installation is OUTDATED!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
>     Retrieving http://db.local.clamav.net/main.cvd
>     Trying to download http://db.local.clamav.net/main.cvd (IP: 104.16.189.138)
>     Downloading main.cvd [100%]
>     LibClamAV debug: Initialized 0.100.0 engine
>     LibClamAV debug: in cli_cvdload()
>     LibClamAV debug: MD5(.tar.gz) = 57462fd73f1cfdb356b9dca66da2b732
>     LibClamAV debug: cli_versig: Decoded signature: 57462fd73f1cfdb356b9dca66da2b732
>     LibClamAV debug: cli_versig: Digital signature is correct.
>     LibClamAV debug: in cli_tgzload()
>     LibClamAV debug: in cli_tgzload_cleanup()
>     WARNING: [LibClamAV] cli_cvdload: Corrupted CVD header
>     LibClamAV debug: Cleaning up phishcheck
>     LibClamAV debug: Phishcheck cleaned up
>     ERROR: Verification: Malformed database
>     Querying main.0.91.0.0.6810BD8A.ping.clamav.net
>     Giving up on db.local.clamav.net...
>     Update failed. Your network may be down or none of the mirrors listed in /etc/freshclam.conf
> is
>     working. Check https://www.clamav.net/documents/official-mirror-faq for possible reasons.
>
>     NOTE: I just copied one of the five tries for updating, they all show same situation.
>
>     I am pointing to db.us.clamav.net as the country code.
>
>     Any idea how to resolve this?
>
>     Thanks,
>
>     Jay
>
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>
>
>     Help us build a comprehensive ClamAV guide:
>     https://github.com/vrtadmin/clamav-faq
>
>     http://www.clamav.net/contact.html#ml
>
>
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>
>
> Help us build a comprehensive ClamAV guide:
> https://github.com/vrtadmin/clamav-faq
>
> http://www.clamav.net/contact.html#ml
>




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