[Clamav-devel] Issue with FP only on 0.103.1

Micah Snyder (micasnyd) micasnyd at cisco.com
Thu Feb 11 19:12:34 UTC 2021


Hi Mark,

Do you think you could share a sample or two with me to test.  I'm really curious what changed and would like to debug each version with a sample or two.

-Micah

> -----Original Message-----
> From: clamav-devel <clamav-devel-bounces at lists.clamav.net> On Behalf Of
> Mark Allan
> Sent: Monday, February 8, 2021 3:04 AM
> To: ClamAV Development <clamav-devel at lists.clamav.net>
> Subject: [Clamav-devel] Issue with FP only on 0.103.1
> 
> Hi all,
> 
> It looks like the additional image file type support in 0.103.1 has introduced
> an issue with a particular signature which has been in the database since 2018
> 
> 	Img.Exploit.CVE_2018_4904-6449838-0
> 
> It's flagging up thousands of known-good files. As far as I can tell, they're all
> TIFF files.
> 
> I've added that signature to an ign2 file for now, but I'm wondering if there's
> something else that's maybe amiss somewhere either with the signature or
> the 0.103.1 update?
> 
> Best regards,
> Mark
> 
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