From: Shivani Bhardwaj <shivani@oisf.net>
Date: Wed, 24 Apr 2024 07:17:01 +0000 (+0530)
Subject: util/mime: skipped chars should be marked consumed
X-Git-Tag: suricata-8.0.0-beta1~1420
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=884400f1ae4e245d59c4843368594797b8863dec;p=thirdparty%2Fsuricata.git

util/mime: skipped chars should be marked consumed
---

diff --git a/src/util-decode-mime.c b/src/util-decode-mime.c
index 533ae971d7..f58a701b01 100644
--- a/src/util-decode-mime.c
+++ b/src/util-decode-mime.c
@@ -1187,6 +1187,9 @@ static uint32_t ProcessBase64Remainder(
     for (uint8_t i = 0; i < state->bvr_len; i++) {
         if (IsBase64Alphabet(state->bvremain[i])) {
             block[cnt++] = state->bvremain[i];
+        } else {
+            /* any invalid char is skipped over but it is consumed by the parser */
+            buf_consumed++;
         }
     }