1 files changed, 48 insertions, 0 deletions
diff --git a/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0008.patch b/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0008.patch
new file mode 100644
index 0000000000..6d64312211
--- /dev/null
+++ b/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0008.patch
@@ -0,0 +1,48 @@
+From 8fb508a25a6a47289c73e3f4339352a73a396eef Mon Sep 17 00:00:00 2001
+From: Joseph Sutton <josephsutton@catalyst.net.nz>
+Date: Wed, 12 Oct 2022 13:57:33 +1300
+Subject: [PATCH] gsskrb5: CVE-2022-3437 Pass correct length to
+ _gssapi_verify_pad()
+
+We later subtract 8 when calculating the length of the output message
+buffer. If padlength is excessively high, this calculation can underflow
+and result in a very large positive value.
+
+Now we properly constrain the value of padlength so underflow shouldn't
+be possible.
+
+Samba BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
+
+Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
+Reviewed-by: Andrew Bartlett <abartlet@samba.org>
+
+Upstream-Status: Backport [https://github.com/heimdal/heimdal/commit/8fb508a25a6a47289c73e3f4339352a73a396eef]
+CVE: CVE-2022-3437
+
+Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
+---
+ lib/gssapi/krb5/unwrap.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/lib/gssapi/krb5/unwrap.c b/lib/gssapi/krb5/unwrap.c
+index fddb64bc53..bab30f4501 100644
+--- a/lib/gssapi/krb5/unwrap.c
++++ b/lib/gssapi/krb5/unwrap.c
+@@ -124,7 +124,7 @@ unwrap_des
+   } else {
+     /* check pad */
+     ret = _gssapi_verify_pad(input_message_buffer,
+-			     input_message_buffer->length - len,
++			     input_message_buffer->length - len - 8,
+			     &padlength);
+     if (ret)
+         return ret;
+@@ -289,7 +289,7 @@ unwrap_des3
+   } else {
+     /* check pad */
+     ret = _gssapi_verify_pad(input_message_buffer,
+-			     input_message_buffer->length - len,
++			     input_message_buffer->length - len - 8,
+			     &padlength);
+     if (ret)
+         return ret;