1 files changed, 41 insertions, 0 deletions

diff --git a/recipes-core/systemd/systemd/CVE-2017-15908-resolved-fix-loop-on-packets-with-pseudo-dns-types.patch b/recipes-core/systemd/systemd/CVE-2017-15908-resolved-fix-loop-on-packets-with-pseudo-dns-types.patch
new file mode 100644
index 0000000..31bc2b5
--- /dev/null
+++ b/recipes-core/systemd/systemd/CVE-2017-15908-resolved-fix-loop-on-packets-with-pseudo-dns-types.patch
@@ -0,0 +1,41 @@
+From 9f939335a07085aa9a9663efd1dca06ef6405d62 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
+Date: Wed, 25 Oct 2017 11:19:19 +0200
+Subject: [PATCH] resolved: fix loop on packets with pseudo dns types
+
+Reported by Karim Hossen & Thomas Imbert from Sogeti ESEC R&D.
+
+https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351
+
+CVE: CVE-2017-15908
+Upstream-Status: Backport [https://launchpadlibrarian.net/342808615/resolved-fix-loop-on-packets-with-pseudo-dns-types.patch]
+
+Signed-off-by: Andreas Wellving <andreas.wellving@enea.com>
+---
+ src/resolve/resolved-dns-packet.c | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c
+index e2f227bfc6..35f4d0689b 100644
+--- a/src/resolve/resolved-dns-packet.c
++++ b/src/resolve/resolved-dns-packet.c
+@@ -1514,7 +1514,7 @@ static int dns_packet_read_type_window(DnsPacket *p, Bitmap **types, size_t *sta
+ 
+                 found = true;
+ 
+-                while (bitmask) {
++                for (; bitmask; bit++, bitmask >>= 1)
+                         if (bitmap[i] & bitmask) {
+                                 uint16_t n;
+ 
+@@ -1528,10 +1528,6 @@ static int dns_packet_read_type_window(DnsPacket *p, Bitmap **types, size_t *sta
+                                 if (r < 0)
+                                         return r;
+                         }
+-
+-                        bit++;
+-                        bitmask >>= 1;
+-                }
+         }
+ 
+         if (!found)
\ No newline at end of file