| From 7ca19df892ca22d9314e95d59ce2abdeff46b617 Mon Sep 17 00:00:00 2001 |
| From: Daniel Veillard <veillard@redhat.com> |
| 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 |
| CVE: CVE-2015-7995 |
| |
| https://git.gnome.org/browse/libxslt/commit/?id=7ca19df892ca22d9314e95d59ce2abdeff46b617 |
| |
| Signed-off-by: Armin Kuster <akuster@mvista.com> |
| |
| --- |
| 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"))) { |