From: Jeff Lucovsky <jeff@lucovsky.org>
Date: Wed, 28 Aug 2019 23:12:40 +0000 (-0400)
Subject: ftp: Ensure non-zero command length with MPM init
X-Git-Tag: suricata-5.0.0-rc1~112
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86deaefe66e3e2cdd69031f816987f3271a72c28;p=thirdparty%2Fsuricata.git

ftp: Ensure non-zero command length with MPM init
---

diff --git a/src/app-layer-ftp.c b/src/app-layer-ftp.c
index 0f08a6e79c..f76e0997ac 100644
--- a/src/app-layer-ftp.c
+++ b/src/app-layer-ftp.c
@@ -1326,6 +1326,9 @@ static void FTPSetMpmState(void)
     uint32_t i = 0;
     for (i = 0; i < sizeof(FtpCommands)/sizeof(FtpCommand) - 1; i++) {
         const FtpCommand *cmd = &FtpCommands[i];
+        if (cmd->command_length == 0)
+            continue;
+
         MpmAddPatternCI(ftp_mpm_ctx,
                        (uint8_t *)cmd->command_name,
                        cmd->command_length,