1 files changed, 37 insertions, 0 deletions
diff --git a/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0005.patch b/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0005.patch
new file mode 100644
index 0000000000..d6ea22e3df
--- /dev/null
+++ b/meta-networking/recipes-connectivity/samba/samba/CVE-2022-3437-0005.patch
@@ -0,0 +1,37 @@
+From 414b2a77fd61c26d64562e3800dc5578d9d0f15d Mon Sep 17 00:00:00 2001
+From: Joseph Sutton <josephsutton@catalyst.net.nz>
+Date: Mon, 15 Aug 2022 16:53:55 +1200
+Subject: [PATCH] gsskrb5: CVE-2022-3437 Check the result of
+ _gsskrb5_get_mech()
+
+We should make sure that the result of 'total_len - mech_len' won't
+overflow, and that we don't memcmp() past the end of the buffer.
+
+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/414b2a77fd61c26d64562e3800dc5578d9d0f15d]
+CVE: CVE-2022-3437
+
+Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
+---
+ lib/gssapi/krb5/decapsulate.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/lib/gssapi/krb5/decapsulate.c b/lib/gssapi/krb5/decapsulate.c
+index 4e3fcd659e..031a621eab 100644
+--- a/lib/gssapi/krb5/decapsulate.c
++++ b/lib/gssapi/krb5/decapsulate.c
+@@ -80,6 +80,10 @@ _gssapi_verify_mech_header(u_char **str,
+
+     if (mech_len != mech->length)
+	return GSS_S_BAD_MECH;
++    if (mech_len > total_len)
++	return GSS_S_BAD_MECH;
++    if (p - *str > total_len - mech_len)
++	return GSS_S_BAD_MECH;
+     if (ct_memcmp(p,
+		  mech->elements,
+		  mech->length) != 0)