1 files changed, 52 insertions, 0 deletions

diff --git a/meta-networking/recipes-support/wireshark/files/CVE-2022-4345.patch b/meta-networking/recipes-support/wireshark/files/CVE-2022-4345.patch
new file mode 100644
index 0000000000..938b7cf772
--- /dev/null
+++ b/meta-networking/recipes-support/wireshark/files/CVE-2022-4345.patch
@@ -0,0 +1,52 @@
+From 39db474f80af87449ce0f034522dccc80ed4153f Mon Sep 17 00:00:00 2001
+From: John Thacker <johnthacker@gmail.com>
+Date: Thu, 1 Dec 2022 20:46:15 -0500
+Subject: [PATCH] openflow_v6: Prevent infinite loops in too short ofp_stats
+
+The ofp_stats struct length field includes the fixed 4 bytes.
+If the length is smaller than that, report the length error
+and break out. In particular, a value of zero can cause
+infinite loops if this isn't done.
+
+
+(cherry picked from commit 13823bb1059cf70f401892ba1b1eaa2400cdf3db)
+
+Upstream-Status: Backport [https://gitlab.com/wireshark/wireshark/-/commit/39db474f80af87449ce0f034522dccc80ed4153f]
+CVE: CVE-2022-4345
+Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
+---
+ epan/dissectors/packet-openflow_v6.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/epan/dissectors/packet-openflow_v6.c b/epan/dissectors/packet-openflow_v6.c
+index f3bd0ef..96a3233 100644
+--- a/epan/dissectors/packet-openflow_v6.c
++++ b/epan/dissectors/packet-openflow_v6.c
+@@ -1118,17 +1118,23 @@ dissect_openflow_v6_oxs(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+ static int
+ dissect_openflow_stats_v6(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
+ {
++    proto_item *ti;
+     guint32 stats_length;
+     int oxs_end;
+     guint32 padding;
+ 
+     proto_tree_add_item(tree, hf_openflow_v6_stats_reserved, tvb, offset, 2, ENC_NA);
+ 
+-    proto_tree_add_item_ret_uint(tree, hf_openflow_v6_stats_length, tvb, offset+2, 2, ENC_BIG_ENDIAN, &stats_length);
++    ti = proto_tree_add_item_ret_uint(tree, hf_openflow_v6_stats_length, tvb, offset+2, 2, ENC_BIG_ENDIAN, &stats_length);
+ 
+     oxs_end = offset + stats_length;
+     offset+=4;
+ 
++    if (stats_length < 4) {
++        expert_add_info(pinfo, ti, &ei_openflow_v6_length_too_short);
++        return offset;
++    }
++
+     while (offset < oxs_end) {
+         offset = dissect_openflow_v6_oxs(tvb, pinfo, tree, offset, oxs_end - offset);
+     }
+-- 
+2.40.1
+