Fix DKIM information leakage

[exim.git] / src / src / dkim.c

diff --git a/src/src/dkim.c b/src/src/dkim.c
index 3fa11c80075b8a23b4d25892fe5f5045b807b31c..70c9547ece2e8715f4e625e7efd7cec4fcbeed1d 100644 (file)
--- a/src/src/dkim.c
+++ b/src/src/dkim.c
@@ -612,6 +612,7 @@ while ((dkim_signing_domain = string_nextinlist(&dkim_domain, &sep,
                         CS dkim_private_key_expanded,
                         PDKIM_ALGO_RSA_SHA256,
                         dkim->dot_stuffed);
+  dkim_private_key_expanded[0] = '\0';
   pdkim_set_optional(ctx,
                      CS dkim_sign_headers_expanded,
                      NULL,