https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6042

           Summary: Malformed UTF-8 character
           Product: Spamassassin
           Version: 3.2.5
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Rules
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Hi!

We are using Postfix 2.5.5 on our RHEL AS release 4 (Nahant Update 6)
academic server.

amavisd-new-2.6.2 (20081215), Unicode aware, LANG="fr"
with spamassassin 3.2.5, perl 5.8.5

Our log file contains many:
amavis[19738]: (19738-05) _WARN: Malformed UTF-8 character (unexpected
continuation byte 0x8e, with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU2, line 1, <GEN16> line 3620.

That rule is version 01.03.13 

A Perl bug report has been reported yesterday by Mark Martinec:
  perlbug: [perl #62048]
  Unwarranted "Malformed UTF-8 character" on tainted variable

See sample attached, it gives me:
[r...@smtpext2 log]# spamassassin </tmp/9854.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x81,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU4, line 1.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x81,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU4, line 1.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x82,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU6, line 1.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x82,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU6, line 1.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x82,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU5, line 1.
[11014] warn: Malformed UTF-8 character (unexpected continuation byte 0x82,
with no preceding start byte) in pattern match (m//) at
/var/lib/spamassassin/3.002005/70_sare_specific_cf_sare_sa-update_dostech_net/200605280300.cf,
rule SARE_SPEC_REPL_OBFU5, line 1.


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