From 6b14ac1562dda1492e7ca44c2306e2432200b8cc Mon Sep 17 00:00:00 2001
From: attilamolnar
Date: Wed, 3 Oct 2012 02:50:20 +0200
Subject: Check if the mask is long enough before accessing it when checking
 extbans

---
 src/modules/m_serverban.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/modules/m_serverban.cpp')

diff --git a/src/modules/m_serverban.cpp b/src/modules/m_serverban.cpp
index 541a56e54..ec38b4754 100644
--- a/src/modules/m_serverban.cpp
+++ b/src/modules/m_serverban.cpp
@@ -41,7 +41,7 @@ class ModuleServerBan : public Module
 
 	ModResult OnCheckBan(User *user, Channel *c, const std::string& mask)
 	{
-		if (mask[0] == 's' && mask[1] == ':')
+		if ((mask.length() > 2) && (mask[0] == 's') && (mask[1] == ':'))
 		{
 			if (InspIRCd::Match(user->server, mask.substr(2)))
 				return MOD_RES_DENY;
-- 
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