[OE-core] [PATCH][jethro][fido] 14/15] libxml2: security fix CVE-2015-5312

[Armin Kuster]

From: Armin Kuster <akuster at mvista.com>

Signed-off-by: Armin Kuster <akuster at mvista.com>
---
 ...-2015-5312-Another-entity-expansion-issue.patch | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 meta/recipes-core/libxml/libxml2/0001-CVE-2015-5312-Another-entity-expansion-issue.patch

diff --git a/meta/recipes-core/libxml/libxml2/0001-CVE-2015-5312-Another-entity-expansion-issue.patch b/meta/recipes-core/libxml/libxml2/0001-CVE-2015-5312-Another-entity-expansion-issue.patch
new file mode 100644
index 0000000..979618d
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/0001-CVE-2015-5312-Another-entity-expansion-issue.patch
@@ -0,0 +1,39 @@
+From 69030714cde66d525a8884bda01b9e8f0abf8e1e Mon Sep 17 00:00:00 2001
+From: David Drysdale <drysdale at google.com>
+Date: Fri, 20 Nov 2015 11:13:45 +0800
+Subject: [PATCH] CVE-2015-5312 Another entity expansion issue
+
+For https://bugzilla.gnome.org/show_bug.cgi?id=756733
+It is one case where the code in place to detect entities expansions
+failed to exit when the situation was detected, leading to DoS
+Problem reported by Kostya Serebryany @ Google
+Patch provided by David Drysdale @ Google
+
+Upstream-Status: Backport
+
+CVE-2015-5312
+
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ parser.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/parser.c b/parser.c
+index b7b6668..da6e729 100644
+--- a/parser.c
++++ b/parser.c
+@@ -2806,6 +2806,10 @@ xmlStringLenDecodeEntities(xmlParserCtxtPtr ctxt, const xmlChar *str, int len,
+ 			                      0, 0, 0);
+ 		ctxt->depth--;
+ 
++		if ((ctxt->lastError.code == XML_ERR_ENTITY_LOOP) ||
++		    (ctxt->lastError.code == XML_ERR_INTERNAL_ERROR))
++		    goto int_error;
++
+ 		if (rep != NULL) {
+ 		    current = rep;
+ 		    while (*current != 0) { /* non input consuming loop */
+-- 
+2.3.5
+
-- 
2.3.5