!110 [sync] PR-105: fix CVE-2024-45491, CVE-2024-45492

From: @openeuler-sync-bot 
Reviewed-by: @dillon_chen 
Signed-off-by: @dillon_chen

backport-CVE-2024-45491.patch

@@ -0,0 +1,31 @@
+From 8e439a9947e9dc80a395c0c7456545d8d9d9e421 Mon Sep 17 00:00:00 2001
+From: Sebastian Pipping <sebastian@pipping.org>
+Date: Mon, 19 Aug 2024 22:34:13 +0200
+Subject: [PATCH] lib: Detect integer overflow in dtdCopy
+
+Reported by TaiYou
+---
+ expat/lib/xmlparse.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/lib/xmlparse.c b/expat/lib/xmlparse.c
+index 91682c188..e2327bdcf 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -7016,6 +7016,16 @@ dtdCopy(XML_Parser oldParser, DTD *newDtd, const DTD *oldDtd,
+     if (! newE)
+       return 0;
+     if (oldE->nDefaultAtts) {
++      /* Detect and prevent integer overflow.
++       * The preprocessor guard addresses the "always false" warning
++       * from -Wtype-limits on platforms where
++       * sizeof(int) < sizeof(size_t), e.g. on x86_64. */
++#if UINT_MAX >= SIZE_MAX
++      if ((size_t)oldE->nDefaultAtts
++          > ((size_t)(-1) / sizeof(DEFAULT_ATTRIBUTE))) {
++        return 0;
++      }
++#endif
+       newE->defaultAtts = (DEFAULT_ATTRIBUTE *)ms->malloc_fcn(
+           oldE->nDefaultAtts * sizeof(DEFAULT_ATTRIBUTE));
+       if (! newE->defaultAtts) {

backport-CVE-2024-45492.patch

@@ -0,0 +1,30 @@
+From 9bf0f2c16ee86f644dd1432507edff94c08dc232 Mon Sep 17 00:00:00 2001
+From: Sebastian Pipping <sebastian@pipping.org>
+Date: Mon, 19 Aug 2024 22:37:16 +0200
+Subject: [PATCH] lib: Detect integer overflow in function nextScaffoldPart
+
+Reported by TaiYou
+---
+ expat/lib/xmlparse.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/lib/xmlparse.c b/lib/xmlparse.c
+index 91682c188..f737575ea 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -7558,6 +7558,15 @@ nextScaffoldPart(XML_Parser parser) {
+   int next;
+ 
+   if (! dtd->scaffIndex) {
++    /* Detect and prevent integer overflow.
++     * The preprocessor guard addresses the "always false" warning
++     * from -Wtype-limits on platforms where
++     * sizeof(unsigned int) < sizeof(size_t), e.g. on x86_64. */
++#if UINT_MAX >= SIZE_MAX
++    if (parser->m_groupSize > ((size_t)(-1) / sizeof(int))) {
++      return -1;
++    }
++#endif
+     dtd->scaffIndex = (int *)MALLOC(parser, parser->m_groupSize * sizeof(int));
+     if (! dtd->scaffIndex)
+       return -1;

expat.spec

@@ -1,7 +1,7 @@
 %define Rversion %(echo %{version} | sed -e 's/\\./_/g' -e 's/^/R_/')
 Name:           expat
 Version:        2.4.1
-Release:        12
+Release:        13
 Summary:        An XML parser library
 License:        MIT
 URL:            https://libexpat.github.io/
@@ -50,6 +50,8 @@ Patch39:        backport-009-CVE-2023-52425.patch
 Patch40:        backport-001-CVE-2024-45490.patch
 Patch41:        backport-002-CVE-2024-45490.patch
 Patch42:        backport-003-CVE-2024-45490.patch
+Patch43:        backport-CVE-2024-45491.patch
+Patch44:        backport-CVE-2024-45492.patch
 
 BuildRequires:  sed,autoconf,automake,gcc-c++,libtool,xmlto
 
@@ -103,6 +105,9 @@ make check
 %{_mandir}/man1/*
 
 %changelog
+* Wed Sep 04 2024 Funda Wang <fundawang@yeah.net> - 2.4.1-13
+- fix CVE-2024-45491, CVE-2024-45492
+
 * Tue Sep 3 2024 caixiaomeng <caixiaomeng2@huawei.com> - 2.4.1-12
 - fix CVE-2024-45490