!281 fix CVE-2025-32414, CVE-2025-32415

From: @fundawang 
Reviewed-by: @dillon_chen 
Signed-off-by: @dillon_chen

backport-CVE-2024-56171.patch

@@ -0,0 +1,41 @@
+From 245b70d7d2768572ae1b05b3668ca858b9ec4ed4 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Tue, 10 Dec 2024 16:52:05 +0100
+Subject: [PATCH] [CVE-2024-56171] Fix use-after-free after
+ xmlSchemaItemListAdd
+
+xmlSchemaItemListAdd can reallocate the items array. Update local
+variables after adding item in
+
+- xmlSchemaIDCFillNodeTables
+- xmlSchemaBubbleIDCNodeTables
+
+Fixes #828.
+---
+ xmlschemas.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/xmlschemas.c b/xmlschemas.c
+index d276faf10..28b14bd44 100644
+--- a/xmlschemas.c
++++ b/xmlschemas.c
+@@ -23388,6 +23388,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+ 			}
+ 			if (xmlSchemaItemListAdd(bind->dupls, bind->nodeTable[j]) == -1)
+ 			    goto internal_error;
++                        dupls = (xmlSchemaPSVIIDCNodePtr *) bind->dupls->items;
+ 			/*
+ 			* Remove the duplicate entry from the IDC node-table.
+ 			*/
+@@ -23604,6 +23605,8 @@ xmlSchemaBubbleIDCNodeTables(xmlSchemaValidCtxtPtr vctxt)
+ 				goto internal_error;
+ 			}
+ 			xmlSchemaItemListAdd(parBind->dupls, parNode);
++		        dupls = (xmlSchemaPSVIIDCNodePtr *)
++                            parBind->dupls->items;
+ 		    } else {
+ 			/*
+ 			* Add the node-table entry (node and key-sequence) of
+-- 
+GitLab
+

backport-CVE-2025-24928.patch

@@ -0,0 +1,57 @@
+From 858ca26c0689161a6b903a6682cc8a1cc10a0ea8 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Tue, 11 Feb 2025 17:30:40 +0100
+Subject: [PATCH] [CVE-2025-24928] Fix stack-buffer-overflow in
+ xmlSnprintfElements
+
+Fixes #847.
+---
+ valid.c | 25 +++++++++++++------------
+ 1 file changed, 13 insertions(+), 12 deletions(-)
+
+diff --git a/valid.c b/valid.c
+index 76d657d62..abefdc50a 100644
+--- a/valid.c
++++ b/valid.c
+@@ -5057,25 +5057,26 @@ xmlSnprintfElements(char *buf, int size, xmlNodePtr node, int glob) {
+ 	    return;
+ 	}
+         switch (cur->type) {
+-            case XML_ELEMENT_NODE:
++            case XML_ELEMENT_NODE: {
++                int qnameLen = xmlStrlen(cur->name);
++
++                if ((cur->ns != NULL) && (cur->ns->prefix != NULL))
++                    qnameLen += xmlStrlen(cur->ns->prefix) + 1;
++                if (size - len < qnameLen + 10) {
++                    if ((size - len > 4) && (buf[len - 1] != '.'))
++                        strcat(buf, " ...");
++                    return;
++                }
+ 		if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+-		    if (size - len < xmlStrlen(cur->ns->prefix) + 10) {
+-			if ((size - len > 4) && (buf[len - 1] != '.'))
+-			    strcat(buf, " ...");
+-			return;
+-		    }
+ 		    strcat(buf, (char *) cur->ns->prefix);
+ 		    strcat(buf, ":");
+ 		}
+-                if (size - len < xmlStrlen(cur->name) + 10) {
+-		    if ((size - len > 4) && (buf[len - 1] != '.'))
+-			strcat(buf, " ...");
+-		    return;
+-		}
+-	        strcat(buf, (char *) cur->name);
++                if (cur->name != NULL)
++	            strcat(buf, (char *) cur->name);
+ 		if (cur->next != NULL)
+ 		    strcat(buf, " ");
+ 		break;
++            }
+             case XML_TEXT_NODE:
+ 		if (xmlIsBlankNode(cur))
+ 		    break;
+-- 
+GitLab
+

backport-CVE-2025-27113.patch

@@ -0,0 +1,31 @@
+From 503f788e84f1c1f1d769c2c7258d77faee94b5a3 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Thu, 13 Feb 2025 16:48:53 +0100
+Subject: [PATCH] pattern: Fix compilation of explicit child axis
+
+The child axis is the default axis and should generate XML_OP_ELEM like
+the case without an axis.
+---
+ pattern.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/pattern.c b/pattern.c
+index 55ae2d3e5..b0f7f1601 100644
+--- a/pattern.c
++++ b/pattern.c
+@@ -1164,10 +1164,10 @@ xmlCompileStepPattern(xmlPatParserContextPtr ctxt) {
+ 			    goto error;
+ 			}
+ 		    } else {
+-			PUSH(XML_OP_CHILD, token, URL);
++			PUSH(XML_OP_ELEM, token, URL);
+ 		    }
+ 		} else
+-		    PUSH(XML_OP_CHILD, name, NULL);
++		    PUSH(XML_OP_ELEM, name, NULL);
+ 		return;
+ 	    } else if (xmlStrEqual(name, (const xmlChar *) "attribute")) {
+ 		XML_PAT_FREE_STRING(ctxt, name)
+-- 
+GitLab
+

backport-CVE-2025-32414.patch

@@ -0,0 +1,73 @@
+From d7657811964eac1cb9743bb98649278ad948f0d2 Mon Sep 17 00:00:00 2001
+From: Maks Verver <maks@verver.ch>
+Date: Tue, 8 Apr 2025 13:13:55 +0200
+Subject: [PATCH] [CVE-2025-32414] python: Read at most len/4 characters.
+
+Fixes #889 by reserving space in the buffer for UTF-8 encoding of text.
+---
+ python/libxml.c | 28 ++++++++++++++++++----------
+ 1 file changed, 18 insertions(+), 10 deletions(-)
+
+diff --git a/python/libxml.c b/python/libxml.c
+index 1fe8d6850..2bf140786 100644
+--- a/python/libxml.c
++++ b/python/libxml.c
+@@ -266,7 +266,9 @@ xmlPythonFileReadRaw (void * context, char * buffer, int len) {
+ #endif
+     file = (PyObject *) context;
+     if (file == NULL) return(-1);
+-    ret = PyObject_CallMethod(file, (char *) "read", (char *) "(i)", len);
++    /* When read() returns a string, the length is in characters not bytes, so
++       request at most len / 4 characters to leave space for UTF-8 encoding. */
++    ret = PyObject_CallMethod(file, (char *) "read", (char *) "(i)", len / 4);
+     if (ret == NULL) {
+ 	printf("xmlPythonFileReadRaw: result is NULL\n");
+ 	return(-1);
+@@ -301,10 +303,12 @@ xmlPythonFileReadRaw (void * context, char * buffer, int len) {
+ 	Py_DECREF(ret);
+ 	return(-1);
+     }
+-    if (lenread > len)
+-	memcpy(buffer, data, len);
+-    else
+-	memcpy(buffer, data, lenread);
++    if (lenread < 0 || lenread > len) {
++	printf("xmlPythonFileReadRaw: invalid lenread\n");
++	Py_DECREF(ret);
++	return(-1);
++    }
++    memcpy(buffer, data, lenread);
+     Py_DECREF(ret);
+     return(lenread);
+ }
+@@ -331,7 +335,9 @@ xmlPythonFileRead (void * context, char * buffer, int len) {
+ #endif
+     file = (PyObject *) context;
+     if (file == NULL) return(-1);
+-    ret = PyObject_CallMethod(file, (char *) "io_read", (char *) "(i)", len);
++    /* When io_read() returns a string, the length is in characters not bytes, so
++       request at most len / 4 characters to leave space for UTF-8 encoding. */
++    ret = PyObject_CallMethod(file, (char *) "io_read", (char *) "(i)", len / 4);
+     if (ret == NULL) {
+ 	printf("xmlPythonFileRead: result is NULL\n");
+ 	return(-1);
+@@ -366,10 +372,12 @@ xmlPythonFileRead (void * context, char * buffer, int len) {
+ 	Py_DECREF(ret);
+ 	return(-1);
+     }
+-    if (lenread > len)
+-	memcpy(buffer, data, len);
+-    else
+-	memcpy(buffer, data, lenread);
++    if (lenread < 0 || lenread > len) {
++	printf("xmlPythonFileRead: invalid lenread\n");
++	Py_DECREF(ret);
++	return(-1);
++    }
++    memcpy(buffer, data, lenread);
+     Py_DECREF(ret);
+     return(lenread);
+ }
+-- 
+GitLab
+

backport-CVE-2025-32415.patch

@@ -0,0 +1,38 @@
+From 384cc7c182fc00c6d5e2ab4b5e3671b2e3f93c84 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Sun, 6 Apr 2025 12:41:11 +0200
+Subject: [PATCH] [CVE-2025-32415] schemas: Fix heap buffer overflow in
+ xmlSchemaIDCFillNodeTables
+
+Don't use local variable which could contain a stale value.
+
+Fixes #890.
+---
+ xmlschemas.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/xmlschemas.c b/xmlschemas.c
+index e35c117ef..4bdabd129 100644
+--- a/xmlschemas.c
++++ b/xmlschemas.c
+@@ -23324,7 +23324,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+ 			j++;
+ 		    } while (j < nbDupls);
+ 		}
+-		if (nbNodeTable) {
++		if (bind->nbNodes) {
+ 		    j = 0;
+ 		    do {
+ 			if (nbFields == 1) {
+@@ -23375,7 +23375,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+ 
+ next_node_table_entry:
+ 			j++;
+-		    } while (j < nbNodeTable);
++		    } while (j < bind->nbNodes);
+ 		}
+ 		/*
+ 		* If everything is fine, then add the IDC target-node to
+-- 
+GitLab
+

libxml2.spec

@@ -1,7 +1,7 @@
 Summary: Library providing XML and HTML support
 Name: libxml2
 Version: 2.11.5
-Release: 4
+Release: 6
 License: MIT
 Group: Development/Libraries
 Source: https://download.gnome.org/sources/%{name}/2.11/%{name}-%{version}.tar.xz
@@ -13,6 +13,11 @@ Patch3: backport-examples-Don-t-call-xmlCleanupParser-and-xmlMemoryDu.patch
 Patch4: backport-CVE-2024-25062.patch
 Patch5: backport-CVE-2024-34459.patch
 Patch6: backport-CVE-2024-40896.patch
+Patch7: backport-CVE-2024-56171.patch
+Patch8: backport-CVE-2025-24928.patch
+Patch9: backport-CVE-2025-27113.patch
+Patch10: backport-CVE-2025-32414.patch
+Patch11: backport-CVE-2025-32415.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
 BuildRequires: python3-devel
@@ -164,6 +169,21 @@ rm -fr %{buildroot}
 
 
 %changelog
+* Mon Apr 14 2025 Funda Wang <fundawang@yeah.net> - 2.11.5-6
+- Type:CVE
+- CVE:CVE-2025-32414
+- CVE:CVE-2025-32415
+- SUG:NA
+- DESC: fix CVE-2025-32414, CVE-2025-32415
+
+* Wed Feb 19 2025 Funda Wang <fundawang@yeah.net> - 2.11.5-5
+- Type:CVE
+- CVE:CVE-2024-56171
+- CVE:CVE-2025-24928
+- CVE:CVE-2025-27113
+- SUG:NA
+- DESC: fix CVE-2024-56171, CVE-2025-24928, CVE-2025-27113
+
 * Mon Jul 29 2024 Funda Wang <fundawang@yeah.net> - 2.11.5-4
 - Type:CVE
 - CVE:CVE-2024-40896