[tor-bugs] #7501 [Applications/Tor Browser]: Audit PDF.js

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Oct 12 14:16:11 UTC 2017


#7501: Audit PDF.js
--------------------------------------+--------------------------
 Reporter:  mikeperry                 |          Owner:  gk
     Type:  task                      |         Status:  assigned
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-security              |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by cypherpunks):

 According to the top comment in this thread on HN
 https://news.ycombinator.com/item?id=15167104

 > PDFium used by Chrome internally uses Foxit PDF library to read and
 extract information from the PDF.
 >
 > Google basically bought Foxit's library and open sourced it - but looks
 like the open source version isn't keeping up with the upstream commercial
 version of Foxit because the latest Foxit reader doesn't seem to have this
 bug.

 If this is true, and the commercial version is years ahead of the open
 source version in terms of security fixes, then it's a serious security
 issue. One wonders why they didn't go for Evince which was always open
 source and cross-platform. Anyway, one should keep that in mind and if
 possible lobby Mozilla to look into this.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7501#comment:22>
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