+++ /dev/null
-From c14b8b511ac55f6933aebefbd6cc27c1ec74ad58 Mon Sep 17 00:00:00 2001
-From: Simon Kelley <simon@thekelleys.org.uk>
-Date: Mon, 25 Sep 2017 18:47:15 +0100
-Subject: [PATCH 2/9] Security fix, CVE-2017-14492, DHCPv6 RA heap
- overflow.
-
- Fix heap overflow in IPv6 router advertisement code.
- This is a potentially serious security hole, as a
- crafted RA request can overflow a buffer and crash or
- control dnsmasq. Attacker must be on the local network.
----
- src/radv.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/src/radv.c b/src/radv.c
-index 749b666..d09fe0e 100644
---- a/src/radv.c
-+++ b/src/radv.c
-@@ -198,6 +198,9 @@ void icmp6_packet(time_t now)
- /* look for link-layer address option for logging */
- if (sz >= 16 && packet[8] == ICMP6_OPT_SOURCE_MAC && (packet[9] * 8) + 8 <= sz)
- {
-+ if ((packet[9] * 8 - 2) * 3 - 1 >= MAXDNAME) {
-+ return;
-+ }
- print_mac(daemon->namebuff, &packet[10], (packet[9] * 8) - 2);
- mac = daemon->namebuff;
- }
---
-2.9.5
-