package/netsnmp: security bump to version 5.9.4

CVE-2022-44792 handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c
in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can
be used by a remote attacker (who has write access) to cause the
instance to crash via a crafted UDP packet, resulting in Denial of
Service.

CVE-2022-44793 handle_ipv6IpForwarding in
agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a
NULL Pointer Exception bug that can be used by a remote attacker to
cause the instance to crash via a crafted UDP packet, resulting in
Denial of Service.

The pgp key was changed [0] as the old one expired [1].

[0]: https://sourceforge.net/p/net-snmp/htdocs/ci/90a6d98aae21fcdff06b5be139eb4d44ae96a9de/
[1]: net-snmp/net-snmp#595

Signed-off-by: Daniel Lang <dalang@gmx.at>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 8686037)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/netsnmp/netsnmp.hash

@@ -1,7 +1,7 @@
 # Locally calculated after checking pgp signature at
-# https://sourceforge.net/projects/net-snmp/files/net-snmp/5.9.3/net-snmp-5.9.3.tar.gz.asc
-# using key D0F8F495DA6160C44EFFBF10F07B9D2DACB19FD6
-sha256  2097f29b7e1bf3f1300b4bae52fa2308d0bb8d5d3998dbe02f9462a413a2ef0a  net-snmp-5.9.3.tar.gz
+# https://sourceforge.net/projects/net-snmp/files/net-snmp/5.9.4/net-snmp-5.9.4.tar.gz.asc
+# using key 6E6718AEF1EB5C65C32D1B2A356BC0B552D53CAB
+sha256  8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544  net-snmp-5.9.4.tar.gz
 
 # Hash for license file
 sha256  ed869ea395a1f125819a56676385ab0557a21507764bf56f2943302011381e59  COPYING

package/netsnmp/netsnmp.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-NETSNMP_VERSION = 5.9.3
+NETSNMP_VERSION = 5.9.4
 NETSNMP_SITE = https://downloads.sourceforge.net/project/net-snmp/net-snmp/$(NETSNMP_VERSION)
 NETSNMP_SOURCE = net-snmp-$(NETSNMP_VERSION).tar.gz
 NETSNMP_LICENSE = Various BSD-like