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authorArmin Kuster <akuster@mvista.com>2016-01-30 14:37:35 -0800
committerSaul Wold <sgw@linux.intel.com>2016-02-01 08:23:27 -0800
commitf3c19a39cdec435f26a7f46a3432231ba4daa19c (patch)
treee9421b2988e77d34d37538985e21ba53fc459539
parent5aaec01acc9e5a19374a566307a425d43c887f4b (diff)
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libxml2: Security fix CVE-2015-8241
CVE-2015-8241 libxml2: Buffer overread with XML parser in xmlNextChar Signed-off-by: Armin Kuster <akuster@mvista.com>
-rw-r--r--meta/recipes-core/libxml/libxml2.inc1
-rw-r--r--meta/recipes-core/libxml/libxml2/CVE-2015-8241.patch40
2 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-core/libxml/libxml2.inc b/meta/recipes-core/libxml/libxml2.inc
index b9ce0f0359..bced950fa9 100644
--- a/meta/recipes-core/libxml/libxml2.inc
+++ b/meta/recipes-core/libxml/libxml2.inc
@@ -35,6 +35,7 @@ SRC_URI = "ftp://xmlsoft.org/libxml2/libxml2-${PV}.tar.gz;name=libtar \
file://0001-CVE-2015-7500-Fix-memory-access-error-due-to-incorre.patch \
file://0001-CVE-2015-8242-Buffer-overead-with-HTML-parser-in-pus.patch \
file://0001-CVE-2015-5312-Another-entity-expansion-issue.patch \
+ file://CVE-2015-8241.patch \
"
BINCONFIG = "${bindir}/xml2-config"
diff --git a/meta/recipes-core/libxml/libxml2/CVE-2015-8241.patch b/meta/recipes-core/libxml/libxml2/CVE-2015-8241.patch
new file mode 100644
index 0000000000..89a46ad173
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/CVE-2015-8241.patch
@@ -0,0 +1,40 @@
+From ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe Mon Sep 17 00:00:00 2001
+From: Hugh Davenport <hugh@allthethings.co.nz>
+Date: Tue, 3 Nov 2015 20:40:49 +0800
+Subject: [PATCH] Avoid extra processing of MarkupDecl when EOF
+
+For https://bugzilla.gnome.org/show_bug.cgi?id=756263
+
+One place where ctxt->instate == XML_PARSER_EOF whic was set up
+by entity detection issues doesn't get noticed, and even overrided
+
+Upstream-status: Backport
+
+https://git.gnome.org/browse/libxml2/commit/?id=ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe
+
+CVE: CVE-2015-8241
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ parser.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+Index: libxml2-2.9.2/parser.c
+===================================================================
+--- libxml2-2.9.2.orig/parser.c
++++ libxml2-2.9.2/parser.c
+@@ -6999,6 +6999,14 @@ xmlParseMarkupDecl(xmlParserCtxtPtr ctxt
+ xmlParsePI(ctxt);
+ }
+ }
++
++ /*
++ * detect requirement to exit there and act accordingly
++ * and avoid having instate overriden later on
++ */
++ if (ctxt->instate == XML_PARSER_EOF)
++ return;
++
+ /*
+ * This is only for internal subset. On external entities,
+ * the replacement is done before parsing stage