File libxml2-2.7.1-CVE-2009-2414_CVE-2009-2616.patch of Package libxml2-python

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File libxml2-2.7.1-CVE-2009-2414_CVE-2009-2616.patch of Package libxml2-python

--- parser.c.orig	2009-08-06 15:56:53.000000000 +0200
+++ parser.c	2009-08-06 16:21:05.000000000 +0200
@@ -5300,7 +5300,8 @@
 	if (name == NULL) {
 	    xmlFatalErrMsg(ctxt, XML_ERR_NAME_REQUIRED,
 			   "Name expected in NOTATION declaration\n");
-	    return(ret);
+	    xmlFreeEnumeration(ret);
+	    return(NULL);
 	}
 	tmp = ret;
 	while (tmp != NULL) {
@@ -5316,7 +5317,10 @@
 	}
 	if (tmp == NULL) {
 	    cur = xmlCreateEnumeration(name);
-	    if (cur == NULL) return(ret);
+	    if (cur == NULL) {
+		xmlFreeEnumeration(ret);
+		return(NULL);
+	    }
 	    if (last == NULL) ret = last = cur;
 	    else {
 		last->next = cur;
@@ -5327,9 +5331,8 @@
     } while (RAW == '|');
     if (RAW != ')') {
 	xmlFatalErr(ctxt, XML_ERR_NOTATION_NOT_FINISHED, NULL);
-	if ((last != NULL) && (last != ret))
-	    xmlFreeEnumeration(last);
-	return(ret);
+	xmlFreeEnumeration(ret);
+	return(NULL);
     }
     NEXT;
     return(ret);
@@ -5384,7 +5387,10 @@
 	    cur = xmlCreateEnumeration(name);
 	    if (!xmlDictOwns(ctxt->dict, name))
 		xmlFree(name);
-	    if (cur == NULL) return(ret);
+	    if (cur == NULL) {
+		xmlFreeEnumeration(ret);
+		return(NULL);
+	    }
 	    if (last == NULL) ret = last = cur;
 	    else {
 		last->next = cur;
@@ -5788,6 +5794,13 @@
     const xmlChar *elem;
     xmlChar type = 0;
 
+    if (ctxt->depth > 128) {
+	xmlFatalErrMsgInt(ctxt, XML_ERR_ELEMCONTENT_NOT_FINISHED,
+		"xmlParseElementChildrenContentDecl : depth %d too deep\n",
+			ctxt->depth);
+	return(NULL);
+    }
+
     SKIP_BLANKS;
     GROW;
     if (RAW == '(') {
@@ -5796,7 +5808,9 @@
         /* Recurse on first child */
 	NEXT;
 	SKIP_BLANKS;
+	ctxt->depth++;
         cur = ret = xmlParseElementChildrenContentDecl(ctxt, inputid);
+	ctxt->depth--;
 	SKIP_BLANKS;
 	GROW;
     } else {
@@ -5928,7 +5942,9 @@
 	    /* Recurse on second child */
 	    NEXT;
 	    SKIP_BLANKS;
+	    ctxt->depth++;
 	    last = xmlParseElementChildrenContentDecl(ctxt, inputid);
+	    ctxt->depth--;
 	    SKIP_BLANKS;
 	} else {
 	    elem = xmlParseName(ctxt);

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File libxml2-2.7.1-CVE-2009-2414_CVE-2009-2616.patch of Package libxml2-python

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