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Bug 678728 - malware infection reported in app-text/teckit which is a dependency of texlive-core
Summary: malware infection reported in app-text/teckit which is a dependency of texliv...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal critical (vote)
Assignee: Gentoo Security
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-02-25 04:47 UTC by John (EBo) David
Modified: 2019-03-04 07:52 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
emerge --info (emerge.info,8.46 KB, text/plain)
2019-02-25 04:47 UTC, John (EBo) David
no flags Details

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Description John (EBo) David 2019-02-25 04:47:21 UTC
Created attachment 566396 [details]
emerge --info

During a routine upgrade I also ran a system wide clanscan and it reported that:

    ./distfiles/teckit-2.5.6.tar.gz: Doc.Malware.Sagent-6865733-0 FOUND

I dug around a bit and discovered that it is a dependency of texlive-core when xetex is installed: 

    app-text/texlive-core-2017-r4 (xetex ? >=app-text/teckit-2.5.3)

I have not tried to install previous version of teckit and texlive-core to see if they are likewise infected -- as there are only a single version of each in the main portage tree.  I have therefore removed texlive-xetex and teckit, disabled the xetex use flag, and rebuilt all dependencies to verify that teckit is not included back on the system.

I have not reproduced this or verified that it is not a false positive.  That said I thought it prudent to report ASAP.  

Sorry to drop this on you BUT...

  EBo --
Comment 1 Tomáš Mózes 2019-02-25 08:46:49 UTC
Seems like the files in teckit-2.5.6.tar.gz were last modified 2016-05-30 22:37 and only clamav reports this.

https://www.virustotal.com/#/file/a27bcee822111efe56ee0c9047d6ed5d8cb1b5005c372517c42c4a7552884105/detection

I think it's a false positive.
Comment 2 Tomáš Mózes 2019-03-04 06:54:39 UTC
Now it's clean in all AV: https://www.virustotal.com/#/url/11c3a39e4e29b2126636da303da3cc37aca0109598e0162b78aeba88bfb6e9f9/detection

Fixed on clamav side.
Comment 3 Tomáš Mózes 2019-03-04 06:56:19 UTC
# clamscan /usr/portage/distfiles/teckit-2.5.6.tar.gz
/usr/portage/distfiles/teckit-2.5.6.tar.gz: OK

----------- SCAN SUMMARY -----------
Known viruses: 6826807
Engine version: 0.101.1
Scanned directories: 0
Scanned files: 1
Infected files: 0
Data scanned: 32.18 MB
Data read: 2.38 MB (ratio 13.51:1)
Time: 31.633 sec (0 m 31 s)

# freshclam 
ClamAV update process started at Mon Mar  4 07:55:54 2019
main.cvd is up to date (version: 58, sigs: 4566249, f-level: 60, builder: sigmgr)
daily.cvd is up to date (version: 25377, sigs: 2267948, f-level: 63, builder: raynman)
bytecode.cvd is up to date (version: 328, sigs: 94, f-level: 63, builder: neo)
Comment 4 John (EBo) David 2019-03-04 07:52:19 UTC
Confirmed.  Thank you, and sorry for any inconvenience.

===========================================

/usr/portage/distfiles/teckit-2.5.6.tar.gz: OK

----------- SCAN SUMMARY -----------
Known viruses: 6826807
Engine version: 0.101.1
Scanned directories: 0
Scanned files: 1
Infected files: 0
Data scanned: 32.18 MB
Data read: 2.38 MB (ratio 13.51:1)
Time: 31.156 sec (0 m 31 s)