bind: CVE-2017-3135

Assertion failure when using DNS64 and RPZ Can Lead to Crash

Reference:
https://bugzilla.redhat.com/show_bug.cgi?id=1420193

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Adrian Dudau <adrian.dudau@enea.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/recipes-connectivity/bind/bind/CVE-2017-3135.patch b/recipes-connectivity/bind/bind/CVE-2017-3135.patch
new file mode 100644
index 0000000..8cb2340
--- /dev/null
+++ b/recipes-connectivity/bind/bind/CVE-2017-3135.patch
@@ -0,0 +1,30 @@
+From 6106ed6841b253c78c6120be24c8722d6310a9b9 Mon Sep 17 00:00:00 2001
+From: Mark Andrews <marka@isc.org>
+Date: Tue, 31 Jan 2017 11:20:03 +1100
+Subject: [PATCH] add a REQUIRE to catch the NULL pointer dereference that
+ triggered CVE-2017-3135
+
+CVE: CVE-2017-3135
+Upstream-Status: Backport [backport from remotes/origin/v9_10]
+
+(cherry picked from commit 1d8995d226d8bca96b8ba286316018be4b7835f2)
+Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
+---
+ lib/dns/rdataset.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/lib/dns/rdataset.c b/lib/dns/rdataset.c
+index 1870394..79bcecb 100644
+--- a/lib/dns/rdataset.c
++++ b/lib/dns/rdataset.c
+@@ -338,6 +338,7 @@ towiresorted(dns_rdataset_t *rdataset, const dns_name_t *owner_name,
+         */
+ 
+        REQUIRE(DNS_RDATASET_VALID(rdataset));
++       REQUIRE(rdataset->methods != NULL);
+        REQUIRE(countp != NULL);
+        REQUIRE((order == NULL) == (order_arg == NULL));
+        REQUIRE(cctx != NULL && cctx->mctx != NULL);
+-- 
+1.9.1
+