[Libreoffice-commits] core.git: Branch 'libreoffice-5-4' - external/libxml2
Michael Stahl
mstahl at redhat.com
Wed Aug 23 22:03:52 UTC 2017
external/libxml2/0001-Fix-buffer-size-checks-in-xmlSnprintfElementContent.patch.1 | 116 ++++
external/libxml2/0001-Fix-handling-of-parameter-entity-references.patch.1 | 287 ++++++++++
external/libxml2/0001-Fix-type-confusion-in-xmlValidateOneNamespace.patch.1 | 43 +
external/libxml2/0001-Increase-buffer-space-for-port-in-HTTP-redirect-supp.patch.1 | 31 +
external/libxml2/0001-Prevent-unwanted-external-entity-reference.patch.1 | 35 +
external/libxml2/UnpackedTarball_xml2.mk | 5
6 files changed, 517 insertions(+)
New commits:
commit 93e79bc7b14c82ec4a2ff5eddddb2c18ac36d9b2
Author: Michael Stahl <mstahl at redhat.com>
Date: Wed Aug 23 12:10:38 2017 +0200
libxml2: bunch of CVE fixes
Change-Id: Ic786fef17cbdb574c342925a4c57875123ef3151
(cherry picked from commit 486d3b214c270fbd2651a0b0895d600e0f647750)
Reviewed-on: https://gerrit.libreoffice.org/41459
Tested-by: Jenkins <ci at libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard at googlemail.com>
diff --git a/external/libxml2/0001-Fix-buffer-size-checks-in-xmlSnprintfElementContent.patch.1 b/external/libxml2/0001-Fix-buffer-size-checks-in-xmlSnprintfElementContent.patch.1
new file mode 100644
index 000000000000..047c88d943a7
--- /dev/null
+++ b/external/libxml2/0001-Fix-buffer-size-checks-in-xmlSnprintfElementContent.patch.1
@@ -0,0 +1,116 @@
+From 932cc9896ab41475d4aa429c27d9afd175959d74 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer at aevum.de>
+Date: Sat, 3 Jun 2017 02:01:29 +0200
+Subject: [PATCH] Fix buffer size checks in xmlSnprintfElementContent
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+xmlSnprintfElementContent failed to correctly check the available
+buffer space in two locations.
+
+Fixes bug 781333 (CVE-2017-9047) and bug 781701 (CVE-2017-9048).
+
+Thanks to Marcel Böhme and Thuan Pham for the report.
+---
+ result/valid/781333.xml | 5 +++++
+ result/valid/781333.xml.err | 3 +++
+ result/valid/781333.xml.err.rdr | 6 ++++++
+ test/valid/781333.xml | 4 ++++
+ valid.c | 20 +++++++++++---------
+ 5 files changed, 29 insertions(+), 9 deletions(-)
+ create mode 100644 result/valid/781333.xml
+ create mode 100644 result/valid/781333.xml.err
+ create mode 100644 result/valid/781333.xml.err.rdr
+ create mode 100644 test/valid/781333.xml
+
+diff --git a/result/valid/781333.xml b/result/valid/781333.xml
+new file mode 100644
+index 00000000..45dc451d
+--- /dev/null
++++ b/result/valid/781333.xml
+@@ -0,0 +1,5 @@
++<?xml version="1.0"?>
++<!DOCTYPE a [
++<!ELEMENT a (ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
pppppppppppppppppppppppppp:llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllllllllll)>
++]>
++<a/>
+diff --git a/result/valid/781333.xml.err b/result/valid/781333.xml.err
+new file mode 100644
+index 00000000..b401b49a
+--- /dev/null
++++ b/result/valid/781333.xml.err
+@@ -0,0 +1,3 @@
++./test/valid/781333.xml:4: element a: validity error : Element a content does not follow the DTD, expecting ( ..., got
++<a/>
++ ^
+diff --git a/result/valid/781333.xml.err.rdr b/result/valid/781333.xml.err.rdr
+new file mode 100644
+index 00000000..5ff56992
+--- /dev/null
++++ b/result/valid/781333.xml.err.rdr
+@@ -0,0 +1,6 @@
++./test/valid/781333.xml:4: element a: validity error : Element a content does not follow the DTD, expecting ( ..., got
++<a/>
++ ^
++./test/valid/781333.xml:5: element a: validity error : Element a content does not follow the DTD, Expecting more child
++
++^
+diff --git a/test/valid/781333.xml b/test/valid/781333.xml
+new file mode 100644
+index 00000000..b29e5a68
+--- /dev/null
++++ b/test/valid/781333.xml
+@@ -0,0 +1,4 @@
++<!DOCTYPE a [
++ <!ELEMENT a (ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
pppppppppppppppppppppppppppppp:llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllllllllllllll)>
++]>
++<a/>
+diff --git a/valid.c b/valid.c
+index 19f84b82..9b2df56a 100644
+--- a/valid.c
++++ b/valid.c
+@@ -1262,22 +1262,23 @@ xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int
+ case XML_ELEMENT_CONTENT_PCDATA:
+ strcat(buf, "#PCDATA");
+ break;
+- case XML_ELEMENT_CONTENT_ELEMENT:
++ case XML_ELEMENT_CONTENT_ELEMENT: {
++ int qnameLen = xmlStrlen(content->name);
++
++ if (content->prefix != NULL)
++ qnameLen += xmlStrlen(content->prefix) + 1;
++ if (size - len < qnameLen + 10) {
++ strcat(buf, " ...");
++ return;
++ }
+ if (content->prefix != NULL) {
+- if (size - len < xmlStrlen(content->prefix) + 10) {
+- strcat(buf, " ...");
+- return;
+- }
+ strcat(buf, (char *) content->prefix);
+ strcat(buf, ":");
+ }
+- if (size - len < xmlStrlen(content->name) + 10) {
+- strcat(buf, " ...");
+- return;
+- }
+ if (content->name != NULL)
+ strcat(buf, (char *) content->name);
+ break;
++ }
+ case XML_ELEMENT_CONTENT_SEQ:
+ if ((content->c1->type == XML_ELEMENT_CONTENT_OR) ||
+ (content->c1->type == XML_ELEMENT_CONTENT_SEQ))
+@@ -1319,6 +1320,7 @@ xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int
+ xmlSnprintfElementContent(buf, size, content->c2, 0);
+ break;
+ }
++ if (size - strlen(buf) <= 2) return;
+ if (englob)
+ strcat(buf, ")");
+ switch (content->ocur) {
+--
+2.13.5
+
diff --git a/external/libxml2/0001-Fix-handling-of-parameter-entity-references.patch.1 b/external/libxml2/0001-Fix-handling-of-parameter-entity-references.patch.1
new file mode 100644
index 000000000000..8f005cf32181
--- /dev/null
+++ b/external/libxml2/0001-Fix-handling-of-parameter-entity-references.patch.1
@@ -0,0 +1,287 @@
+From e26630548e7d138d2c560844c43820b6767251e3 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer at aevum.de>
+Date: Mon, 5 Jun 2017 15:37:17 +0200
+Subject: [PATCH] Fix handling of parameter-entity references
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+There were two bugs where parameter-entity references could lead to an
+unexpected change of the input buffer in xmlParseNameComplex and
+xmlDictLookup being called with an invalid pointer.
+
+Percent sign in DTD Names
+=========================
+
+The NEXTL macro used to call xmlParserHandlePEReference. When parsing
+"complex" names inside the DTD, this could result in entity expansion
+which created a new input buffer. The fix is to simply remove the call
+to xmlParserHandlePEReference from the NEXTL macro. This is safe because
+no users of the macro require expansion of parameter entities.
+
+- xmlParseNameComplex
+- xmlParseNCNameComplex
+- xmlParseNmtoken
+
+The percent sign is not allowed in names, which are grammatical tokens.
+
+- xmlParseEntityValue
+
+Parameter-entity references in entity values are expanded but this
+happens in a separate step in this function.
+
+- xmlParseSystemLiteral
+
+Parameter-entity references are ignored in the system literal.
+
+- xmlParseAttValueComplex
+- xmlParseCharDataComplex
+- xmlParseCommentComplex
+- xmlParsePI
+- xmlParseCDSect
+
+Parameter-entity references are ignored outside the DTD.
+
+- xmlLoadEntityContent
+
+This function is only called from xmlStringLenDecodeEntities and
+entities are replaced in a separate step immediately after the function
+call.
+
+This bug could also be triggered with an internal subset and double
+entity expansion.
+
+This fixes bug 766956 initially reported by Wei Lei and independently by
+Chromium's ClusterFuzz, Hanno Böck, and Marco Grassi. Thanks to everyone
+involved.
+
+xmlParseNameComplex with XML_PARSE_OLD10
+========================================
+
+When parsing Names inside an expanded parameter entity with the
+XML_PARSE_OLD10 option, xmlParseNameComplex would call xmlGROW via the
+GROW macro if the input buffer was exhausted. At the end of the
+parameter entity's replacement text, this function would then call
+xmlPopInput which invalidated the input buffer.
+
+There should be no need to invoke GROW in this situation because the
+buffer is grown periodically every XML_PARSER_CHUNK_SIZE characters and,
+at least for UTF-8, in xmlCurrentChar. This also matches the code path
+executed when XML_PARSE_OLD10 is not set.
+
+This fixes bugs 781205 (CVE-2017-9049) and 781361 (CVE-2017-9050).
+Thanks to Marcel Böhme and Thuan Pham for the report.
+
+Additional hardening
+====================
+
+A separate check was added in xmlParseNameComplex to validate the
+buffer size.
+---
+ Makefile.am | 18 ++++++++++++++++++
+ parser.c | 18 ++++++++++--------
+ result/errors10/781205.xml | 0
+ result/errors10/781205.xml.err | 21 +++++++++++++++++++++
+ result/errors10/781361.xml | 0
+ result/errors10/781361.xml.err | 13 +++++++++++++
+ result/valid/766956.xml | 0
+ result/valid/766956.xml.err | 9 +++++++++
+ result/valid/766956.xml.err.rdr | 10 ++++++++++
+ runtest.c | 3 +++
+ test/errors10/781205.xml | 3 +++
+ test/errors10/781361.xml | 3 +++
+ test/valid/766956.xml | 2 ++
+ test/valid/dtds/766956.dtd | 2 ++
+ 14 files changed, 94 insertions(+), 8 deletions(-)
+ create mode 100644 result/errors10/781205.xml
+ create mode 100644 result/errors10/781205.xml.err
+ create mode 100644 result/errors10/781361.xml
+ create mode 100644 result/errors10/781361.xml.err
+ create mode 100644 result/valid/766956.xml
+ create mode 100644 result/valid/766956.xml.err
+ create mode 100644 result/valid/766956.xml.err.rdr
+ create mode 100644 test/errors10/781205.xml
+ create mode 100644 test/errors10/781361.xml
+ create mode 100644 test/valid/766956.xml
+ create mode 100644 test/valid/dtds/766956.dtd
+
+diff --git a/parser.c b/parser.c
+index df2efa55..a175ac4e 100644
+--- a/parser.c
++++ b/parser.c
+@@ -2121,7 +2121,6 @@ static void xmlGROW (xmlParserCtxtPtr ctxt) {
+ ctxt->input->line++; ctxt->input->col = 1; \
+ } else ctxt->input->col++; \
+ ctxt->input->cur += l; \
+- if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \
+ } while (0)
+
+ #define CUR_CHAR(l) xmlCurrentChar(ctxt, &l)
+@@ -3412,13 +3411,6 @@ xmlParseNameComplex(xmlParserCtxtPtr ctxt) {
+ len += l;
+ NEXTL(l);
+ c = CUR_CHAR(l);
+- if (c == 0) {
+- count = 0;
+- GROW;
+- if (ctxt->instate == XML_PARSER_EOF)
+- return(NULL);
+- c = CUR_CHAR(l);
+- }
+ }
+ }
+ if ((len > XML_MAX_NAME_LENGTH) &&
+@@ -3426,6 +3418,16 @@ xmlParseNameComplex(xmlParserCtxtPtr ctxt) {
+ xmlFatalErr(ctxt, XML_ERR_NAME_TOO_LONG, "Name");
+ return(NULL);
+ }
++ if (ctxt->input->cur - ctxt->input->base < len) {
++ /*
++ * There were a couple of bugs where PERefs lead to to a change
++ * of the buffer. Check the buffer size to avoid passing an invalid
++ * pointer to xmlDictLookup.
++ */
++ xmlFatalErr(ctxt, XML_ERR_INTERNAL_ERROR,
++ "unexpected change of input buffer");
++ return (NULL);
++ }
+ if ((*ctxt->input->cur == '\n') && (ctxt->input->cur[-1] == '\r'))
+ return(xmlDictLookup(ctxt->dict, ctxt->input->cur - (len + 1), len));
+ return(xmlDictLookup(ctxt->dict, ctxt->input->cur - len, len));
+diff --git a/result/errors10/781205.xml b/result/errors10/781205.xml
+new file mode 100644
+index 00000000..e69de29b
+diff --git a/result/errors10/781205.xml.err b/result/errors10/781205.xml.err
+new file mode 100644
+index 00000000..da15c3f7
+--- /dev/null
++++ b/result/errors10/781205.xml.err
+@@ -0,0 +1,21 @@
++Entity: line 1: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration
++
++ %a;
++ ^
++Entity: line 1:
++<:0000
++^
++Entity: line 1: parser error : DOCTYPE improperly terminated
++ %a;
++ ^
++Entity: line 1:
++<:0000
++^
++namespace error : Failed to parse QName ':0000'
++ %a;
++ ^
++<:0000
++ ^
++./test/errors10/781205.xml:4: parser error : Couldn't find end of Start Tag :0000 line 1
++
++^
+diff --git a/result/errors10/781361.xml b/result/errors10/781361.xml
+new file mode 100644
+index 00000000..e69de29b
+diff --git a/result/errors10/781361.xml.err b/result/errors10/781361.xml.err
+new file mode 100644
+index 00000000..655f41a2
+--- /dev/null
++++ b/result/errors10/781361.xml.err
+@@ -0,0 +1,13 @@
++./test/errors10/781361.xml:4: parser error : xmlParseElementDecl: 'EMPTY', 'ANY' or '(' expected
++
++^
++./test/errors10/781361.xml:4: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration
++
++
++^
++./test/errors10/781361.xml:4: parser error : DOCTYPE improperly terminated
++
++^
++./test/errors10/781361.xml:4: parser error : Start tag expected, '<' not found
++
++^
+diff --git a/result/valid/766956.xml b/result/valid/766956.xml
+new file mode 100644
+index 00000000..e69de29b
+diff --git a/result/valid/766956.xml.err b/result/valid/766956.xml.err
+new file mode 100644
+index 00000000..34b1dae6
+--- /dev/null
++++ b/result/valid/766956.xml.err
+@@ -0,0 +1,9 @@
++test/valid/dtds/766956.dtd:2: parser error : PEReference: expecting ';'
++%ä%ent;
++ ^
++Entity: line 1: parser error : Content error in the external subset
++ %ent;
++ ^
++Entity: line 1:
++value
++^
+diff --git a/result/valid/766956.xml.err.rdr b/result/valid/766956.xml.err.rdr
+new file mode 100644
+index 00000000..77603462
+--- /dev/null
++++ b/result/valid/766956.xml.err.rdr
+@@ -0,0 +1,10 @@
++test/valid/dtds/766956.dtd:2: parser error : PEReference: expecting ';'
++%ä%ent;
++ ^
++Entity: line 1: parser error : Content error in the external subset
++ %ent;
++ ^
++Entity: line 1:
++value
++^
++./test/valid/766956.xml : failed to parse
+diff --git a/runtest.c b/runtest.c
+index b2ce693b..378b38e3 100644
+--- a/runtest.c
++++ b/runtest.c
+@@ -4214,6 +4214,9 @@ testDesc testDescriptions[] = {
+ { "Error cases regression tests",
+ errParseTest, "./test/errors/*.xml", "result/errors/", "", ".err",
+ 0 },
++ { "Error cases regression tests (old 1.0)",
++ errParseTest, "./test/errors10/*.xml", "result/errors10/", "", ".err",
++ XML_PARSE_OLD10 },
+ #ifdef LIBXML_READER_ENABLED
+ { "Error cases stream regression tests",
+ streamParseTest, "./test/errors/*.xml", "result/errors/", NULL, ".str",
+diff --git a/test/errors10/781205.xml b/test/errors10/781205.xml
+new file mode 100644
+index 00000000..d9e9e839
+--- /dev/null
++++ b/test/errors10/781205.xml
+@@ -0,0 +1,3 @@
++<!DOCTYPE D [
++ <!ENTITY % a "<:0000">
++ %a;
+diff --git a/test/errors10/781361.xml b/test/errors10/781361.xml
+new file mode 100644
+index 00000000..67476bcb
+--- /dev/null
++++ b/test/errors10/781361.xml
+@@ -0,0 +1,3 @@
++<!DOCTYPE doc [
++ <!ENTITY % elem "<!ELEMENT e0000000000">
++ %elem;
+diff --git a/test/valid/766956.xml b/test/valid/766956.xml
+new file mode 100644
+index 00000000..19a95a0e
+--- /dev/null
++++ b/test/valid/766956.xml
+@@ -0,0 +1,2 @@
++<!DOCTYPE test SYSTEM "dtds/766956.dtd">
++<test/>
+diff --git a/test/valid/dtds/766956.dtd b/test/valid/dtds/766956.dtd
+new file mode 100644
+index 00000000..dddde68b
+--- /dev/null
++++ b/test/valid/dtds/766956.dtd
+@@ -0,0 +1,2 @@
++<!ENTITY % ent "value">
++%ä%ent;
+--
+2.13.5
+
diff --git a/external/libxml2/0001-Fix-type-confusion-in-xmlValidateOneNamespace.patch.1 b/external/libxml2/0001-Fix-type-confusion-in-xmlValidateOneNamespace.patch.1
new file mode 100644
index 000000000000..f0c4e6d5dba5
--- /dev/null
+++ b/external/libxml2/0001-Fix-type-confusion-in-xmlValidateOneNamespace.patch.1
@@ -0,0 +1,43 @@
+From 92b9e8c8b3787068565a1820ba575d042f9eec66 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer at aevum.de>
+Date: Tue, 6 Jun 2017 12:56:28 +0200
+Subject: [PATCH] Fix type confusion in xmlValidateOneNamespace
+
+Comment out code that casts xmlNsPtr to xmlAttrPtr. ID types on
+namespace declarations make no practical sense anyway.
+
+Fixes bug 780228.
+
+Found with libFuzzer and ASan.
+---
+ valid.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/valid.c b/valid.c
+index 8075d3a0..c51ea290 100644
+--- a/valid.c
++++ b/valid.c
+@@ -4627,6 +4627,12 @@ xmlNodePtr elem, const xmlChar *prefix, xmlNsPtr ns, const xmlChar *value) {
+ }
+ }
+
++ /*
++ * Casting ns to xmlAttrPtr is wrong. We'd need separate functions
++ * xmlAddID and xmlAddRef for namespace declarations, but it makes
++ * no practical sense to use ID types anyway.
++ */
++#if 0
+ /* Validity Constraint: ID uniqueness */
+ if (attrDecl->atype == XML_ATTRIBUTE_ID) {
+ if (xmlAddID(ctxt, doc, value, (xmlAttrPtr) ns) == NULL)
+@@ -4638,6 +4644,7 @@ xmlNodePtr elem, const xmlChar *prefix, xmlNsPtr ns, const xmlChar *value) {
+ if (xmlAddRef(ctxt, doc, value, (xmlAttrPtr) ns) == NULL)
+ ret = 0;
+ }
++#endif
+
+ /* Validity Constraint: Notation Attributes */
+ if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) {
+--
+2.13.5
+
diff --git a/external/libxml2/0001-Increase-buffer-space-for-port-in-HTTP-redirect-supp.patch.1 b/external/libxml2/0001-Increase-buffer-space-for-port-in-HTTP-redirect-supp.patch.1
new file mode 100644
index 000000000000..fa90247f5e23
--- /dev/null
+++ b/external/libxml2/0001-Increase-buffer-space-for-port-in-HTTP-redirect-supp.patch.1
@@ -0,0 +1,31 @@
+From 5dca9eea1bd4263bfa4d037ab2443de1cd730f7e Mon Sep 17 00:00:00 2001
+From: Daniel Veillard <veillard at redhat.com>
+Date: Fri, 7 Apr 2017 17:13:28 +0200
+Subject: [PATCH] Increase buffer space for port in HTTP redirect support
+
+For https://bugzilla.gnome.org/show_bug.cgi?id=780690
+
+nanohttp.c: the code wrongly assumed a short int port value.
+---
+ nanohttp.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/nanohttp.c b/nanohttp.c
+index e109ad75..373425de 100644
+--- a/nanohttp.c
++++ b/nanohttp.c
+@@ -1423,9 +1423,9 @@ retry:
+ if (ctxt->port != 80) {
+ /* reserve space for ':xxxxx', incl. potential proxy */
+ if (proxy)
+- blen += 12;
++ blen += 17;
+ else
+- blen += 6;
++ blen += 11;
+ }
+ bp = (char*)xmlMallocAtomic(blen);
+ if ( bp == NULL ) {
+--
+2.13.5
+
diff --git a/external/libxml2/0001-Prevent-unwanted-external-entity-reference.patch.1 b/external/libxml2/0001-Prevent-unwanted-external-entity-reference.patch.1
new file mode 100644
index 000000000000..7a935a6ada60
--- /dev/null
+++ b/external/libxml2/0001-Prevent-unwanted-external-entity-reference.patch.1
@@ -0,0 +1,35 @@
+From 90ccb58242866b0ba3edbef8fe44214a101c2b3e Mon Sep 17 00:00:00 2001
+From: Neel Mehta <nmehta at 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
+--
+2.13.5
+
diff --git a/external/libxml2/UnpackedTarball_xml2.mk b/external/libxml2/UnpackedTarball_xml2.mk
index a683d28ead78..3f06a40764a3 100644
--- a/external/libxml2/UnpackedTarball_xml2.mk
+++ b/external/libxml2/UnpackedTarball_xml2.mk
@@ -18,6 +18,11 @@ $(eval $(call gb_UnpackedTarball_add_patches,xml2,\
$(if $(filter ANDROID,$(OS)),external/libxml2/libxml2-android.patch) \
external/libxml2/libxml2-icu.patch.0 \
external/libxml2/ubsan.patch.0 \
+ external/libxml2/0001-Fix-type-confusion-in-xmlValidateOneNamespace.patch.1 \
+ external/libxml2/0001-Prevent-unwanted-external-entity-reference.patch.1 \
+ external/libxml2/0001-Increase-buffer-space-for-port-in-HTTP-redirect-supp.patch.1 \
+ external/libxml2/0001-Fix-buffer-size-checks-in-xmlSnprintfElementContent.patch.1 \
+ external/libxml2/0001-Fix-handling-of-parameter-entity-references.patch.1 \
))
# vim: set noet sw=4 ts=4:
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