From: Victor Julien <vjulien@oisf.net>
Date: Thu, 28 Mar 2024 14:47:06 +0000 (+0100)
Subject: mime: validate that chunk size stays within limit
X-Git-Tag: suricata-8.0.0-beta1~1445
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6635ea96016f3ffed0b59f42f30dea092f990dc;p=thirdparty%2Fsuricata.git

mime: validate that chunk size stays within limit
---

diff --git a/src/util-decode-mime.c b/src/util-decode-mime.c
index 73f7335e5d..26da883632 100644
--- a/src/util-decode-mime.c
+++ b/src/util-decode-mime.c
@@ -1093,6 +1093,8 @@ static int FindUrlStrings(const uint8_t *line, uint32_t len,
 static int ProcessDecodedDataChunk(const uint8_t *chunk, uint32_t len,
         MimeDecParseState *state)
 {
+    DEBUG_VALIDATE_BUG_ON(len > DATA_CHUNK_SIZE);
+
     int ret = MIME_DEC_OK;
     uint8_t *remainPtr, *tok;
     uint32_t tokLen;