Fix CVE-2022-37434 and CVE-2022-33070

backport-0001-CVE-2022-37434.patch

@@ -0,0 +1,35 @@
+From eff308af425b67093bab25f80f1ae950166bece1 Mon Sep 17 00:00:00 2001
+From: Mark Adler <fork@madler.net>
+Date: Sat, 30 Jul 2022 15:51:11 -0700
+Subject: [PATCH] Fix a bug when getting a gzip header extra field with
+ inflate().
+
+If the extra field was larger than the space the user provided with
+inflateGetHeader(), and if multiple calls of inflate() delivered
+the extra header data, then there could be a buffer overflow of the
+provided space. This commit assures that provided space is not
+exceeded.
+---
+ inflate.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/lib/zlib/inflate.c b/lib/zlib/inflate.c
+index 2a0ac30..95a38f5 100644
+--- a/lib/zlib/inflate.c
++++ b/lib/zlib/inflate.c
+@@ -765,9 +765,10 @@ int flush;
+                 copy = state->length;
+                 if (copy > have) copy = have;
+                 if (copy) {
++                    len = state->head->extra_len - state->length;
+                     if (state->head != Z_NULL &&
+-                        state->head->extra != Z_NULL) {
+-                        len = state->head->extra_len - state->length;
++                        state->head->extra != Z_NULL &&
++                        len < state->head->extra_max) {
+                         zmemcpy(state->head->extra + len, next,
+                                 len + copy > state->head->extra_max ?
+                                 state->head->extra_max - len : copy);
+-- 
+2.27.0
+

backport-0002-CVE-2022-37434.patch

@@ -0,0 +1,32 @@
+From 1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d Mon Sep 17 00:00:00 2001
+From: Mark Adler <fork@madler.net>
+Date: Mon, 8 Aug 2022 10:50:09 -0700
+Subject: [PATCH] Fix extra field processing bug that dereferences NULL
+ state->head.
+
+The recent commit to fix a gzip header extra field processing bug
+introduced the new bug fixed here.
+---
+ inflate.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/lib/zlib/inflate.c b/lib/zlib/inflate.c
+index 95a38f5..9c5934e 100644
+--- a/lib/zlib/inflate.c
++++ b/lib/zlib/inflate.c
+@@ -765,10 +765,10 @@ int flush;
+                 copy = state->length;
+                 if (copy > have) copy = have;
+                 if (copy) {
+-                    len = state->head->extra_len - state->length;
+                     if (state->head != Z_NULL &&
+                         state->head->extra != Z_NULL &&
+-                        len < state->head->extra_max) {
++                        (len = state->head->extra_len - state->length) <
++                            state->head->extra_max) {
+                         zmemcpy(state->head->extra + len, next,
+                                 len + copy > state->head->extra_max ?
+                                 state->head->extra_max - len : copy);
+-- 
+2.27.0
+

backport-CVE-2022-33070.patch

@@ -0,0 +1,73 @@
+diff -Naru a/lib/protobuf-c/protobuf-c.c b/lib/protobuf-c/protobuf-c.c
+--- a/lib/protobuf-c/protobuf-c.c
++++ b/lib/protobuf-c/protobuf-c.c
+@@ -316,9 +316,8 @@
+ static inline uint32_t
+ zigzag32(int32_t v)
+ {
+-	// Note:  the right-shift must be arithmetic
+-	// Note:  left shift must be unsigned because of overflow
+-	return ((uint32_t)(v) << 1) ^ (uint32_t)(v >> 31);
++	// Note:  Using unsigned types prevents undefined behavior
++	return ((uint32_t)v << 1) ^ -((uint32_t)v >> 31);
+ }
+ 
+ /**
+@@ -380,9 +379,8 @@
+ static inline uint64_t
+ zigzag64(int64_t v)
+ {
+-	// Note:  the right-shift must be arithmetic
+-	// Note:  left shift must be unsigned because of overflow
+-	return ((uint64_t)(v) << 1) ^ (uint64_t)(v >> 63);
++	// Note:  Using unsigned types prevents undefined behavior
++	return ((uint64_t)v << 1) ^ -((uint64_t)v >> 63);
+ }
+ 
+ /**
+@@ -802,7 +800,8 @@
+ }
+ 
+ /**
+- * Pack a signed 32-bit integer and return the number of bytes written.
++ * Pack a signed 32-bit integer and return the number of bytes written,
++ * passed as unsigned to avoid implementation-specific behavior.
+  * Negative numbers are encoded as two's complement 64-bit integers.
+  *
+  * \param value
+@@ -813,14 +812,14 @@
+  *      Number of bytes written to `out`.
+  */
+ static inline size_t
+-int32_pack(int32_t value, uint8_t *out)
++int32_pack(uint32_t value, uint8_t *out)
+ {
+-	if (value < 0) {
++	if ((int32_t)value < 0) {
+ 		out[0] = value | 0x80;
+ 		out[1] = (value >> 7) | 0x80;
+ 		out[2] = (value >> 14) | 0x80;
+ 		out[3] = (value >> 21) | 0x80;
+-		out[4] = (value >> 28) | 0x80;
++		out[4] = (value >> 28) | 0xf0;
+ 		out[5] = out[6] = out[7] = out[8] = 0xff;
+ 		out[9] = 0x01;
+ 		return 10;
+@@ -2425,7 +2424,7 @@
+ unzigzag32(uint32_t v)
+ {
+ 	// Note:  Using unsigned types prevents undefined behavior
+-	return (int32_t)((v >> 1) ^ (~(v & 1) + 1));
++	return (int32_t)((v >> 1) ^ -(v & 1));
+ }
+ 
+ static inline uint32_t
+@@ -2467,7 +2466,7 @@
+ unzigzag64(uint64_t v)
+ {
+ 	// Note:  Using unsigned types prevents undefined behavior
+-	return (int64_t)((v >> 1) ^ (~(v & 1) + 1));
++	return (int64_t)((v >> 1) ^ -(v & 1));
+ }
+ 
+ static inline uint64_t

sudo.spec

@@ -1,6 +1,6 @@
 Name: sudo
 Version: 1.9.8p2
-Release: 1
+Release: 2
 Summary: Allows restricted root access for specified users
 License: ISC
 URL: http://www.courtesan.com/sudo/
@@ -10,6 +10,10 @@ Source1: sudoers
 Source2: sudo
 Source3: sudo-i
 
+Patch0: backport-0001-CVE-2022-37434.patch
+Patch1: backport-0002-CVE-2022-37434.patch
+Patch2: backport-CVE-2022-33070.patch
+
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 Requires: pam
 Recommends: vim-minimal
@@ -150,6 +154,9 @@ install -p -c -m 0644 %{SOURCE3} $RPM_BUILD_ROOT/etc/pam.d/sudo-i
 %exclude %{_pkgdocdir}/ChangeLog
 
 %changelog
+* Fri Sep 2 2022 wangyu <wangyu283@huawei.com> - 1.9.8p2-2
+- Fix CVE-2022-37434 and CVE-2022-33070
+
 * Tue Feb 15 2022 panxiaohe <panxh.life@foxmail.com> - 1.9.8p2-1
 - Update to 1.9.8p2