[Bug 3470] New: Attached JPGs causing rules to see data not in the message.

[bu...@bugzilla.spamassassin.org]

http://bugzilla.spamassassin.org/show_bug.cgi?id=3470

           Summary: Attached JPGs causing rules to see data not in the
                    message.
           Product: Spamassassin
           Version: 2.63
          Platform: PC
               URL: http://web.mit.edu/london/www/914.
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: spamassassin
        AssignedTo: spamassassin-dev@incubator.apache.org
        ReportedBy: mrl@psfc.mit.edu


I've had several attached JPGs cause false positives, due to false hits from
OBFUSCATING_COMMENT.  However, he problem appears to be a more general problem,
that rules are seeing data that doesn't exist in the message.   One such example
is in the URL for this bug report.  I ran spamassassin on this file in debug
mode using -D rulesrun=255, and it's reports many __HIGHBITS hits, such as:

debug: Ran body-text regex rule __HIGHBITS ======> got hit: match='C>B4C0CB<B$CC
>'

And the __OBFUSCATING_COMMENT_B rule causes OBFUSCATING_COMMENT to be positive:

debug: Ran body_pattern_hit rule __OBFUSCATING_COMMENT_B ======> got hit: match=
'/<!pvIm<#l3jc8=KtjAf<SC^J"vack}j:P?,4^}__7GV`(<=z3S4}%Tdz+7FZ__km(?t3Lv_F+E9%]j
64^|#q>-'
debug: Ran body_pattern_hit rule __OBFUSCATING_COMMENT_B ======> got hit: match=
'<!4k7}Y|G~?^|0UT;Zn_W^>b'



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