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Diffstat (limited to 'src/lib/protocols/tls.c')
-rw-r--r--src/lib/protocols/tls.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/protocols/tls.c b/src/lib/protocols/tls.c
index e4737829f..7ef8bdf1a 100644
--- a/src/lib/protocols/tls.c
+++ b/src/lib/protocols/tls.c
@@ -1687,7 +1687,8 @@ int processClientServerHello(struct ndpi_detection_module_struct *ndpi_struct,
while(s_offset < tot_alpn_len && s_offset < total_len) {
u_int8_t alpn_i, alpn_len = packet->payload[s_offset++];
- if((s_offset + alpn_len) <= tot_alpn_len) {
+ if((s_offset + alpn_len) <= tot_alpn_len &&
+ (s_offset + alpn_len) <= total_len) {
#ifdef DEBUG_TLS
printf("Client TLS [ALPN: %u]\n", alpn_len);
#endif