bind: fix CVE-2020-8625

BIND Operational Notification: Zone journal (.jnl) file incompatibility.

(From OE-Core rev: 294afc40fb6cb847bf50a5839806a4351bb0e8b0)

Signed-off-by: Minjae Kim <flowergom@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 30 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/bind/bind-9.16.7/CVE-2020-8625.patch b/meta/recipes-connectivity/bind/bind-9.16.7/CVE-2020-8625.patch
new file mode 100644
index 0000000000..98b8623139
--- /dev/null
+++ b/meta/recipes-connectivity/bind/bind-9.16.7/CVE-2020-8625.patch
@@ -0,0 +1,29 @@
+From 5b671538216af78a0a7ef7464dc52ab2241ea7db Mon Sep 17 00:00:00 2001
+From: Minjae Kim <flowergom@gmail.com>
+Date: Tue, 2 Mar 2021 14:03:49 +0000
+Subject: [PATCH] BIND Operational Notification: Zone journal (.jnl) file
+ incompatibility
+
+Upstream-Status: Backport [https://downloads.isc.org/isc/bind9/9.16.12/patches/CVE-2020-8625.patch]
+CVE: CVE-2020-8625
+Signed-off-by: Minjae Kim <flowergom@gmail.com>
+---
+ lib/dns/spnego.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/dns/spnego.c b/lib/dns/spnego.c
+index 671838c..82fd49a 100644
+--- a/lib/dns/spnego.c
++++ b/lib/dns/spnego.c
+@@ -846,7 +846,7 @@ der_get_oid(const unsigned char *p, size_t len, oid *data, size_t *size) {
+                return (ASN1_OVERRUN);
+        }
+ 
+-       data->components = malloc(len * sizeof(*data->components));
++       data->components = malloc((len + 1) * sizeof(*data->components));
+        if (data->components == NULL) {
+                return (ENOMEM);
+        }
+-- 
+2.17.1
+
diff --git a/meta/recipes-connectivity/bind/bind_9.16.7.bb b/meta/recipes-connectivity/bind/bind_9.16.7.bb
index 5fc2c1d3cd..82c1bb66df 100644
--- a/meta/recipes-connectivity/bind/bind_9.16.7.bb
+++ b/meta/recipes-connectivity/bind/bind_9.16.7.bb
@@ -17,6 +17,7 @@ SRC_URI = "https://ftp.isc.org/isc/bind9/${PV}/${BPN}-${PV}.tar.xz \
            file://bind-ensure-searching-for-json-headers-searches-sysr.patch \
            file://0001-named-lwresd-V-and-start-log-hide-build-options.patch \
            file://0001-avoid-start-failure-with-bind-user.patch \
+           file://CVE-2020-8625.patch \
            "
 
 SRC_URI[sha256sum] = "9f7d1812ebbd26a699f62b6fa8522d5dec57e4bf43af0042a0d60d39ed8314d1"