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Contents
From 5865b9545891a38608374ff6458663e483a0dfb5 Mon Sep 17 00:00:00 2001
From: Daniel Veillard <veillard@redhat.com>
Date: Thu, 29 Oct 2015 19:33:23 +0800
Subject: [PATCH] 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
---
libxslt/preproc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libxslt/preproc.c b/libxslt/preproc.c
index 4ef3f63..dac6acb 100644
--- a/libxslt/preproc.c
+++ b/libxslt/preproc.c
@@ -2245,7 +2245,8 @@ xsltStylePreCompute(xsltStylesheetPtr style, xmlNodePtr inst) {
} 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"))) {
--
2.5.0
Version data entries
21 entries across 21 versions & 4 rubygems