tcpdump: Fix CVE-2018-16301

This fixes the following security problem:
The command-line argument parser in tcpdump before 4.99.0 has a buffer
overflow in tcpdump.c:read_infile(). To trigger this vulnerability the
attacker needs to create a 4GB file on the local filesystem and to
specify the file name as the value of the -F command-line argument of
tcpdump.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/network/utils/tcpdump/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=tcpdump
 PKG_VERSION:=4.9.3
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.tcpdump.org/release/