https://bugs.exim.org/show_bug.cgi?id=1851
Bug ID: 1851
Summary: Exim core dump in dkim verification
Product: Exim
Version: 4.87
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: DKIM
Assignee: tom@???
Reporter: yan.huang@???
CC: exim-dev@???
in exim-4.87-1
when DKIM-Signature has double quotes, base64 decode failed because of
character " and return -1 and then bodyhash.data is set to NULL, dkim
verification core dumps.
DKIM-Signature: v=1; a="rsa-sha256"; c="relaxed/relaxed";
d="advokatkontoret.onmicrosoft.com";
s="selector1-advokatkontoret-dk";
h="From:Date:Subject:Message-ID:Content-Type:MIME-Version";
bh="cJ9iPsrTIBw5YTGp3pNiGGcSuZuflpjdpu9rLqKqw/U=";
b="Lel92AXONZROIw3mWk/bUdvZ3aEHg031vzyzm/qftN6csDHoSSBcaqiL786PNznlp7t8Rr/K6A2B31jTqvwBYv+JHogvij1k81aGMZ9jtCJTFosU8B9l/3/5mWdriQNZQ9souJ2vr46dmyj7QK5MGpyviRM7wYYtHreAiJE2TGg="
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