fix unsigned integer overflow

Signed-off-by: mengwenhua <mengwenhua@xfusion.com>

backport-0001-Fix-issue-499-unsigned-integer-overflow.patch

@@ -0,0 +1,35 @@
+From 289f5c18b195aa43d46a619d1188709abbfa9c82 Mon Sep 17 00:00:00 2001
+From: 10054172 <hui.zhang@thalesgroup.com>
+Date: Fri, 18 Mar 2022 12:42:57 -0400
+Subject: [PATCH 1/2] Fix issue #499: unsigned integer overflow
+
+Signed-off-by: 10054172 <hui.zhang@thalesgroup.com>
+---
+ protobuf-c/protobuf-c.c | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+diff --git a/protobuf-c/protobuf-c.c b/protobuf-c/protobuf-c.c
+index 98052cd..ec2d40a 100644
+--- a/protobuf-c/protobuf-c.c
++++ b/protobuf-c/protobuf-c.c
+@@ -2603,10 +2603,13 @@ parse_required_member(ScannedMember *scanned_member,
+ 			return FALSE;
+ 
+ 		def_mess = scanned_member->field->default_value;
+-		subm = protobuf_c_message_unpack(scanned_member->field->descriptor,
+-						 allocator,
+-						 len - pref_len,
+-						 data + pref_len);
++		if (len > pref_len)
++			subm = protobuf_c_message_unpack(scanned_member->field->descriptor,
++							 allocator,
++							 len - pref_len,
++							 data + pref_len);
++		else
++			subm = NULL;
+ 
+ 		if (maybe_clear &&
+ 		    *pmessage != NULL &&
+-- 
+2.37.3.windows.1
+

backport-0002-Fix-regression-with-zero-length-messages-introduced-.patch

@@ -0,0 +1,28 @@
+From 0d1fd124a4e0a07b524989f6e64410ff648fba61 Mon Sep 17 00:00:00 2001
+From: "Todd C. Miller" <Todd.Miller@sudo.ws>
+Date: Thu, 9 Jun 2022 07:34:55 -0600
+Subject: [PATCH 2/2] Fix regression with zero-length messages introduced in
+ protobuf-c PR 500.
+
+[edmonds: Import bugfix from
+https://github.com/sudo-project/sudo/commit/b6a6451482a3ff5e30f43ef888159d4b0d39143b.patch.]
+---
+ protobuf-c/protobuf-c.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/protobuf-c/protobuf-c.c b/protobuf-c/protobuf-c.c
+index ec2d40a..448f3e8 100644
+--- a/protobuf-c/protobuf-c.c
++++ b/protobuf-c/protobuf-c.c
+@@ -2603,7 +2603,7 @@ parse_required_member(ScannedMember *scanned_member,
+ 			return FALSE;
+ 
+ 		def_mess = scanned_member->field->default_value;
+-		if (len > pref_len)
++		if (len >= pref_len)
+ 			subm = protobuf_c_message_unpack(scanned_member->field->descriptor,
+ 							 allocator,
+ 							 len - pref_len,
+-- 
+2.37.3.windows.1
+

protobuf-c.spec

@@ -1,6 +1,6 @@
 Name:           protobuf-c
 Version:        1.4.0
-Release:        3
+Release:        4
 Summary:        This is protobuf-c, a C implementation of the Google Protocol Buffers data serialization format
 License:        BSD-2-Clause
 URL:            https://github.com/protobuf-c/protobuf-c
@@ -11,6 +11,9 @@ BuildRequires:  autoconf automake libtool gcc-c++ pkgconfig(protobuf)
 Provides:       %{name}-compiler = %{version}-%{release}
 Obsoletes:      %{name}-compiler < %{version}-%{release}
 
+Patch6000:      backport-0001-Fix-issue-499-unsigned-integer-overflow.patch
+Patch6001:      backport-0002-Fix-regression-with-zero-length-messages-introduced-.patch
+
 %description
 This is protobuf-c, a C implementation of the Google Protocol Buffers data serialization format.
 
@@ -50,6 +53,12 @@ make check
 %{_libdir}/{libprotobuf-c.so,pkgconfig/libprotobuf-c.pc}
 
 %changelog
+* Sat Jan 7 2023 mengwenhua<mengwenhua@xfusion.com> - 1.4.0-4
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:fix unsigned integer overflow
+
 * Mon Jul 4 2022 dengyuyu <yuyu.deng@epro.com.cn> - 1.4.0-3
 - fix CVE-2022-33070