https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6895
Bug ID: 6895
Summary: Avoid "Use of uninitialized value" warnings in DKIM
plugin on broken signatures
Product: Spamassassin
Version: SVN Trunk (Latest Devel Version)
Hardware: All
OS: All
Status: NEW
Severity: minor
Priority: P2
Component: Plugins
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
Some recent spam contains DKIM signatures with missing required tags
'd' and/or 's', which results in unnecessary warnings like:
Use of uninitialized value in lc
at /usr/local/lib/perl5/site_perl/5.17.7/Mail/SpamAssassin/Plugin/DKIM.pm
line 818.
Use of uninitialized value in lc
at /usr/local/lib/perl5/site_perl/5.17.7/Mail/SpamAssassin/Plugin/DKIM.pm
line 1144.
The fix is fairly straightforward, just posting this for documentation.
Btw, the underlying module Mail::DKIM also produces its own
set of warnings on the same reason. This is tracked as a CPAN bug
[rt.cpan.org #82913] - https://rt.cpan.org/Ticket/Display.html?id=82913
The signature header field causing the above looks like:
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
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