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-rw-r--r--gnu/packages/patches/libxml2-CVE-2017-7375.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/gnu/packages/patches/libxml2-CVE-2017-7375.patch b/gnu/packages/patches/libxml2-CVE-2017-7375.patch
new file mode 100644
index 0000000000..32af1ff6ba
--- /dev/null
+++ b/gnu/packages/patches/libxml2-CVE-2017-7375.patch
@@ -0,0 +1,45 @@
+Fix CVE-2017-7375:
+
+https://bugzilla.gnome.org/show_bug.cgi?id=780691 (not yet public)
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7375
+https://security-tracker.debian.org/tracker/CVE-2017-7375
+
+Patch copied from upstream source repository:
+
+https://git.gnome.org/browse/libxml2/commit/?id=90ccb58242866b0ba3edbef8fe44214a101c2b3e
+
+From 90ccb58242866b0ba3edbef8fe44214a101c2b3e Mon Sep 17 00:00:00 2001
+From: Neel Mehta <nmehta@google.com>
+Date: Fri, 7 Apr 2017 17:43:02 +0200
+Subject: [PATCH] Prevent unwanted external entity reference
+
+For https://bugzilla.gnome.org/show_bug.cgi?id=780691
+
+* parser.c: add a specific check to avoid PE reference
+---
+ parser.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/parser.c b/parser.c
+index 609a2703..c2c812de 100644
+--- a/parser.c
++++ b/parser.c
+@@ -8123,6 +8123,15 @@ xmlParsePEReference(xmlParserCtxtPtr ctxt)
+ if (xmlPushInput(ctxt, input) < 0)
+ return;
+ } else {
++ if ((entity->etype == XML_EXTERNAL_PARAMETER_ENTITY) &&
++ ((ctxt->options & XML_PARSE_NOENT) == 0) &&
++ ((ctxt->options & XML_PARSE_DTDVALID) == 0) &&
++ ((ctxt->options & XML_PARSE_DTDLOAD) == 0) &&
++ ((ctxt->options & XML_PARSE_DTDATTR) == 0) &&
++ (ctxt->replaceEntities == 0) &&
++ (ctxt->validate == 0))
++ return;
++
+ /*
+ * TODO !!!
+ * handle the extra spaces added before and after
+--
+2.14.1
+