1 files changed, 36 insertions, 0 deletions

diff --git a/meta-oe/recipes-connectivity/krb5/krb5/krb5-CVE-2016-3119.patch b/meta-oe/recipes-connectivity/krb5/krb5/krb5-CVE-2016-3119.patch
new file mode 100644
index 000000000..67fefed89
--- /dev/null
+++ b/meta-oe/recipes-connectivity/krb5/krb5/krb5-CVE-2016-3119.patch
@@ -0,0 +1,36 @@
+Subject: kerb: Fix LDAP null deref on empty arg [CVE-2016-3119]
+From: Greg Hudson
+
+In the LDAP KDB module's process_db_args(), strtok_r() may return NULL
+if there is an empty string in the db_args array.  Check for this case
+and avoid dereferencing a null pointer.
+
+CVE-2016-3119:
+
+In MIT krb5 1.6 and later, an authenticated attacker with permission
+to modify a principal entry can cause kadmind to dereference a null
+pointer by supplying an empty DB argument to the modify_principal
+command, if kadmind is configured to use the LDAP KDB module.
+
+    CVSSv2 Vector: AV:N/AC:H/Au:S/C:N/I:N/A:C/E:H/RL:OF/RC:ND
+
+ticket: 8383 (new)
+target_version: 1.14-next
+target_version: 1.13-next
+tags: pullup
+
+Upstream-Status: Backport
+
+Signed-off-by: Zhixiong Chi <zhixiong.chi@windriver.com>
+Index: krb5-1.13.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c
+===================================================================
+--- krb5-1.13.2.orig/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c 2015-05-09 07:27:02.000000000 +0800
++++ krb5-1.13.2/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c      2016-04-11 15:17:12.874140518 +0800
+@@ -267,6 +267,7 @@
+     if (db_args) {
+         for (i=0; db_args[i]; ++i) {
+             arg = strtok_r(db_args[i], "=", &arg_val);
++            arg = (arg != NULL) ? arg : "";
+             if (strcmp(arg, TKTPOLICY_ARG) == 0) {
+                 dptr = &xargs->tktpolicydn;
+             } else {