From: Victor Julien <victor@inliniac.net>
Date: Mon, 15 Apr 2019 12:52:38 +0000 (+0200)
Subject: parse/ip: fix potential oob write in ipv4 validation
X-Git-Tag: suricata-5.0.0-beta1~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=666bb1b6e48b47e9fafe161ac57deae8d0fd89f0;p=thirdparty%2Fsuricata.git

parse/ip: fix potential oob write in ipv4 validation

Found using AFL.
---

diff --git a/src/util-ip.c b/src/util-ip.c
index 7b568986fb..be127327ed 100644
--- a/src/util-ip.c
+++ b/src/util-ip.c
@@ -53,7 +53,7 @@ bool IPv4AddressStringIsValid(const char *str)
             dots++;
             alen = 0;
         } else {
-            if (alen >= 4) {
+            if (alen >= 3) {
                 SCLogDebug("too long");
                 return false;
             }