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-rw-r--r--meta/recipes-core/libxml/libxml2/CVE-2016-4447.patch208
-rw-r--r--meta/recipes-core/libxml/libxml2_2.9.2.bb1
2 files changed, 209 insertions, 0 deletions
diff --git a/meta/recipes-core/libxml/libxml2/CVE-2016-4447.patch b/meta/recipes-core/libxml/libxml2/CVE-2016-4447.patch
new file mode 100644
index 0000000000..5957844433
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/CVE-2016-4447.patch
@@ -0,0 +1,208 @@
1From 00906759053986b8079985644172085f74331f83 Mon Sep 17 00:00:00 2001
2From: David Kilzer <ddkilzer@apple.com>
3Date: Tue, 26 Jan 2016 16:57:03 -0800
4Subject: [PATCH] Heap-based buffer-underreads due to xmlParseName
5
6For https://bugzilla.gnome.org/show_bug.cgi?id=759573
7
8* parser.c:
9(xmlParseElementDecl): Return early on invalid input to fix
10non-minimized test case (759573-2.xml). Otherwise the parser
11gets into a bad state in SKIP(3) at the end of the function.
12(xmlParseConditionalSections): Halt parsing when hitting invalid
13input that would otherwise caused xmlParserHandlePEReference()
14to recurse unexpectedly. This fixes the minimized test case
15(759573.xml).
16
17* result/errors/759573-2.xml: Add.
18* result/errors/759573-2.xml.err: Add.
19* result/errors/759573-2.xml.str: Add.
20* result/errors/759573.xml: Add.
21* result/errors/759573.xml.err: Add.
22* result/errors/759573.xml.str: Add.
23* test/errors/759573-2.xml: Add.
24* test/errors/759573.xml: Add.
25
26Upstream-Status: Backport
27CVE: CVE-2016-4447
28Signed-off-by: Armin Kuster <akuster@mvist.com>
29
30---
31 parser.c | 2 ++
32 result/errors/759573-2.xml | 0
33 result/errors/759573-2.xml.err | 58 ++++++++++++++++++++++++++++++++++++++++++
34 result/errors/759573-2.xml.str | 4 +++
35 result/errors/759573.xml | 0
36 result/errors/759573.xml.err | 31 ++++++++++++++++++++++
37 result/errors/759573.xml.str | 4 +++
38 test/errors/759573-2.xml | 9 +++++++
39 test/errors/759573.xml | 1 +
40 9 files changed, 109 insertions(+)
41 create mode 100644 result/errors/759573-2.xml
42 create mode 100644 result/errors/759573-2.xml.err
43 create mode 100644 result/errors/759573-2.xml.str
44 create mode 100644 result/errors/759573.xml
45 create mode 100644 result/errors/759573.xml.err
46 create mode 100644 result/errors/759573.xml.str
47 create mode 100644 test/errors/759573-2.xml
48 create mode 100644 test/errors/759573.xml
49
50Index: libxml2-2.9.2/parser.c
51===================================================================
52--- libxml2-2.9.2.orig/parser.c
53+++ libxml2-2.9.2/parser.c
54@@ -6723,6 +6723,7 @@ xmlParseElementDecl(xmlParserCtxtPtr ctx
55 if (!IS_BLANK_CH(CUR)) {
56 xmlFatalErrMsg(ctxt, XML_ERR_SPACE_REQUIRED,
57 "Space required after 'ELEMENT'\n");
58+ return(-1);
59 }
60 SKIP_BLANKS;
61 name = xmlParseName(ctxt);
62@@ -6874,6 +6875,7 @@ xmlParseConditionalSections(xmlParserCtx
63
64 if ((CUR_PTR == check) && (cons == ctxt->input->consumed)) {
65 xmlFatalErr(ctxt, XML_ERR_EXT_SUBSET_NOT_FINISHED, NULL);
66+ xmlHaltParser(ctxt);
67 break;
68 }
69 }
70Index: libxml2-2.9.2/result/errors/759573-2.xml.err
71===================================================================
72--- /dev/null
73+++ libxml2-2.9.2/result/errors/759573-2.xml.err
74@@ -0,0 +1,58 @@
75+Entity: line 1: parser error : Space required after '<!ENTITY'
76+ %zz;
77+ ^
78+Entity: line 1:
79+<!ENTITY<?xDOCTYPEm~?>
80+ ^
81+Entity: line 1: parser error : xmlParseEntityDecl: no name
82+ %zz;
83+ ^
84+Entity: line 1:
85+<!ENTITY<?xDOCTYPEm~?>
86+ ^
87+Entity: line 1: parser error : ParsePI: PI xDOCTYPEm space expected
88+ %zz;
89+ ^
90+Entity: line 1:
91+<!ENTITY<?xDOCTYPEm~?>
92+ ^
93+Entity: line 1: parser error : Space required after '<!ENTITY'
94+ %zz;
95+ ^
96+Entity: line 1:
97+<!ENTITY<?xDOCTYPEm~?>
98+ ^
99+Entity: line 1: parser error : xmlParseEntityDecl: no name
100+ %zz;
101+ ^
102+Entity: line 1:
103+<!ENTITY<?xDOCTYPEm~?>
104+ ^
105+Entity: line 1: parser error : ParsePI: PI xDOCTYPEm space expected
106+ %zz;
107+ ^
108+Entity: line 1:
109+<!ENTITY<?xDOCTYPEm~?>
110+ ^
111+Entity: line 1: parser error : Space required after 'ELEMENT'
112+ %xx;
113+ ^
114+Entity: line 3:
115+%zz;<!ELEMENTD(%MENT%MENTDŹMENTD%zNMT9KENSMYSYSTEM;MENT9%zz;
116+ ^
117+Entity: line 1: parser error : Content error in the external subset
118+ %xx;
119+ ^
120+Entity: line 3:
121+%zz;<!ELEMENTD(%MENT%MENTDŹMENTD%zNMT9KENSMYSYSTEM;MENT9%zz;
122+ ^
123+./test/errors/759573-2.xml:6: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration
124+
125+%xx;ÿggKENSMYNT&#35;MENTD&#372zz;'>
126+ ^
127+./test/errors/759573-2.xml:6: parser error : DOCTYPE improperly terminated
128+%xx;ÿggKENSMYNT&#35;MENTD&#372zz;'>
129+ ^
130+./test/errors/759573-2.xml:6: parser error : Start tag expected, '<' not found
131+%xx;ÿggKENSMYNT&#35;MENTD&#372zz;'>
132+ ^
133Index: libxml2-2.9.2/result/errors/759573-2.xml.str
134===================================================================
135--- /dev/null
136+++ libxml2-2.9.2/result/errors/759573-2.xml.str
137@@ -0,0 +1,4 @@
138+./test/errors/759573-2.xml:2: parser error : Extra content at the end of the document
139+<!DOCTYPE test [
140+ ^
141+./test/errors/759573-2.xml : failed to parse
142Index: libxml2-2.9.2/result/errors/759573.xml.err
143===================================================================
144--- /dev/null
145+++ libxml2-2.9.2/result/errors/759573.xml.err
146@@ -0,0 +1,31 @@
147+./test/errors/759573.xml:1: parser error : Space required after '<!ENTITY'
148+ELEMENT t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITY
149+ ^
150+./test/errors/759573.xml:1: parser error : Space required after the entity name
151+LEMENT t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz
152+ ^
153+./test/errors/759573.xml:1: parser error : Entity value required
154+LEMENT t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz
155+ ^
156+Entity: line 1: parser error : PEReference: no name
157+ %xx;
158+ ^
159+Entity: line 1:
160+%<![INCLUDE[000%ஸ000%z;
161+ ^
162+Entity: line 1: parser error : Content error in the external subset
163+ %xx;
164+ ^
165+Entity: line 1:
166+%<![INCLUDE[000%ஸ000%z;
167+ ^
168+./test/errors/759573.xml:1: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration
169+
170+T t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz>%xx;
171+ ^
172+./test/errors/759573.xml:1: parser error : DOCTYPE improperly terminated
173+T t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz>%xx;
174+ ^
175+./test/errors/759573.xml:1: parser error : Start tag expected, '<' not found
176+T t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz>%xx;
177+ ^
178Index: libxml2-2.9.2/result/errors/759573.xml.str
179===================================================================
180--- /dev/null
181+++ libxml2-2.9.2/result/errors/759573.xml.str
182@@ -0,0 +1,4 @@
183+./test/errors/759573.xml:1: parser error : Extra content at the end of the document
184+<?h?><!DOCTYPEt[<!ELEMENT t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;00
185+ ^
186+./test/errors/759573.xml : failed to parse
187Index: libxml2-2.9.2/test/errors/759573-2.xml
188===================================================================
189--- /dev/null
190+++ libxml2-2.9.2/test/errors/759573-2.xml
191@@ -0,0 +1,9 @@
192+<?xmh ven="1.0"?>
193+<!DOCTYPE test [
194+<!ELEMENT test (#PCDATA) >
195+<!ENTITY % xx '&#37;zz; <![INCLUDE[ &#37;zz;<!ELEMENTD(&#37;MENT&#37;MENTD&#377;MENTD&#37;zNMT9KENSMYSYSTEM;MENT9&#37;zz;'>
196+<!ENTITY % zz '&#60;!ENTITY<?xDOCTYPEm~?>' >
197+%xx;ÿggKENSMYNT&#35;MENTD&#372zz;'>
198+<!ENBITY % zz '&#60;!EN#3&##37;z ';!EY'#x;g
199+<!ENTent ref="bè:b>r.B"/>
200+e </
201\ No newline at end of file
202Index: libxml2-2.9.2/test/errors/759573.xml
203===================================================================
204--- /dev/null
205+++ libxml2-2.9.2/test/errors/759573.xml
206@@ -0,0 +1 @@
207+<?h?><!DOCTYPEt[<!ELEMENT t (A)><!ENTITY % xx '&#37;<![INCLUDE[000&#37;&#3000;000&#37;z;'><!ENTITYz>%xx;
208\ No newline at end of file
diff --git a/meta/recipes-core/libxml/libxml2_2.9.2.bb b/meta/recipes-core/libxml/libxml2_2.9.2.bb
index 90f7a7ab79..c7db1de14e 100644
--- a/meta/recipes-core/libxml/libxml2_2.9.2.bb
+++ b/meta/recipes-core/libxml/libxml2_2.9.2.bb
@@ -17,6 +17,7 @@ SRC_URI += "file://CVE-2016-1762.patch \
17 file://CVE-2016-1835.patch \ 17 file://CVE-2016-1835.patch \
18 file://CVE-2016-1833.patch \ 18 file://CVE-2016-1833.patch \
19 file://CVE-2016-3627.patch \ 19 file://CVE-2016-3627.patch \
20 file://CVE-2016-4447.patch \
20 " 21 "
21 22
22SRC_URI[libtar.md5sum] = "9e6a9aca9d155737868b3dc5fd82f788" 23SRC_URI[libtar.md5sum] = "9e6a9aca9d155737868b3dc5fd82f788"
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2026-02-03 07:55:09 +0000