components/libxslt/patches/CVE-2015-7995.patch

   1 Patch origin: upstream
   2 Patch status: will be part of next version
   3
   4 https://git.gnome.org/browse/libxslt/commit/?id=7ca19df892ca22d9314e95d59ce2abdeff46b617
   5
   6 From 7ca19df892ca22d9314e95d59ce2abdeff46b617 Mon Sep 17 00:00:00 2001
   7 From: Daniel Veillard <veillard@redhat.com>
   8 Date: Thu, 29 Oct 2015 19:33:23 +0800
   9 Subject: Fix for type confusion in preprocessing attributes
  10
  11 CVE-2015-7995 http://www.openwall.com/lists/oss-security/2015/10/27/10
  12 We need to check that the parent node is an element before dereferencing
  13 its namespace
  14 ---
  15  libxslt/preproc.c | 3 ++-
  16  1 file changed, 2 insertions(+), 1 deletion(-)
  17
  18 diff --git a/libxslt/preproc.c b/libxslt/preproc.c
  19 index 0eb80a0..7f69325 100644
  20 --- a/libxslt/preproc.c
  21 +++ b/libxslt/preproc.c
  22 @@ -2249,7 +2249,8 @@ xsltStylePreCompute(xsltStylesheetPtr style, xmlNodePtr inst) {
  23         } else if (IS_XSLT_NAME(inst, "attribute")) {
  24             xmlNodePtr parent = inst->parent;
  25
  26 -           if ((parent == NULL) || (parent->ns == NULL) ||
  27 +           if ((parent == NULL) ||
  28 +               (parent->type != XML_ELEMENT_NODE) || (parent->ns == NULL) ||
  29                 ((parent->ns != inst->ns) &&
  30                  (!xmlStrEqual(parent->ns->href, inst->ns->href))) ||
  31                 (!xmlStrEqual(parent->name, BAD_CAST "attribute-set"))) {
  32 --
  33 cgit v0.11.2
  34