Ping. - armin
On 10/29/2015 04:22 PM, Armin Kuster wrote: > From: Armin Kuster <[email protected]> > > This is a is being give a High rating so please consider it for > all 1.1.28 versions. > > A type confusion error within the libxslt "xsltStylePreCompute()" > function in preproc.c can lead to a DoS. Confirmed in version 1.1.28, > other versions may also be affected. > > Signed-off-by: Armin Kuster <[email protected]> > --- > .../libxslt/libxslt/CVE-2015-7995.patch | 33 > ++++++++++++++++++++++ > meta/recipes-support/libxslt/libxslt_1.1.28.bb | 3 +- > 2 files changed, 35 insertions(+), 1 deletion(-) > create mode 100644 meta/recipes-support/libxslt/libxslt/CVE-2015-7995.patch > > diff --git a/meta/recipes-support/libxslt/libxslt/CVE-2015-7995.patch > b/meta/recipes-support/libxslt/libxslt/CVE-2015-7995.patch > new file mode 100644 > index 0000000..e4d09c2 > --- /dev/null > +++ b/meta/recipes-support/libxslt/libxslt/CVE-2015-7995.patch > @@ -0,0 +1,33 @@ > +From 7ca19df892ca22d9314e95d59ce2abdeff46b617 Mon Sep 17 00:00:00 2001 > +From: Daniel Veillard <[email protected]> > +Date: Thu, 29 Oct 2015 19:33:23 +0800 > +Subject: Fix for type confusion in preprocessing attributes > + > +CVE-2015-7995 http://www.openwall.com/lists/oss-security/2015/10/27/10 > +We need to check that the parent node is an element before dereferencing > +its namespace > + > +Upstream-Status: Backport > + > +https://git.gnome.org/browse/libxslt/commit/?id=7ca19df892ca22d9314e95d59ce2abdeff46b617 > + > +Signed-off-by: Armin Kuster <[email protected]> > + > +--- > + libxslt/preproc.c | 3 ++- > + 1 file changed, 2 insertions(+), 1 deletion(-) > + > +Index: libxslt-1.1.28/libxslt/preproc.c > +=================================================================== > +--- libxslt-1.1.28.orig/libxslt/preproc.c > ++++ libxslt-1.1.28/libxslt/preproc.c > +@@ -2245,7 +2245,8 @@ xsltStylePreCompute(xsltStylesheetPtr st > + } else if (IS_XSLT_NAME(inst, "attribute")) { > + xmlNodePtr parent = inst->parent; > + > +- if ((parent == NULL) || (parent->ns == NULL) || > ++ if ((parent == NULL) || > ++ (parent->type != XML_ELEMENT_NODE) || (parent->ns == NULL) || > + ((parent->ns != inst->ns) && > + (!xmlStrEqual(parent->ns->href, inst->ns->href))) || > + (!xmlStrEqual(parent->name, BAD_CAST "attribute-set"))) { > diff --git a/meta/recipes-support/libxslt/libxslt_1.1.28.bb > b/meta/recipes-support/libxslt/libxslt_1.1.28.bb > index 166bcd8..87fabec 100644 > --- a/meta/recipes-support/libxslt/libxslt_1.1.28.bb > +++ b/meta/recipes-support/libxslt/libxslt_1.1.28.bb > @@ -10,7 +10,8 @@ DEPENDS = "libxml2" > > SRC_URI = "ftp://xmlsoft.org/libxslt//libxslt-${PV}.tar.gz \ > file://pkgconfig_fix.patch \ > - file://pkgconfig.patch" > + file://pkgconfig.patch \ > + file://CVE-2015-7995.patch" > > SRC_URI[md5sum] = "9667bf6f9310b957254fdcf6596600b7" > SRC_URI[sha256sum] = > "5fc7151a57b89c03d7b825df5a0fae0a8d5f05674c0e7cf2937ecec4d54a028c" > -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
