Commit 5f61e0e1 authored by Natanael Copa's avatar Natanael Copa

main/libxslt: security fix for CVE-2019-11068

fixes #10277
parent c646ca73
......@@ -2,19 +2,23 @@
# Contributor: Francesco Colista <fcolista@alpinelinux.org>
pkgname=libxslt
pkgver=1.1.33
pkgrel=0
pkgrel=1
pkgdesc="XML stylesheet transformation library"
url="http://xmlsoft.org/XSLT/"
arch="all"
license="custom"
makedepends="libxml2-dev libgcrypt-dev libgpg-error-dev python2-dev"
subpackages="$pkgname-dev $pkgname-doc py2-$pkgname:py2"
source="http://xmlsoft.org/sources/$pkgname-$pkgver.tar.gz"
source="http://xmlsoft.org/sources/$pkgname-$pkgver.tar.gz
CVE-2019-11068.patch
"
builddir="$srcdir/$pkgname-$pkgver"
# secfixes:
# 1.1.33-r1:
# - CVE-2019-11068
# 1.1.29-r1:
# - CVE-2017-5029
# - CVE-2017-5029
build() {
cd "$builddir"
......@@ -42,4 +46,5 @@ py2() {
mv "$pkgdir"/usr/lib/python* "$subpkgdir"/usr/lib/
}
sha512sums="ebbe438a38bf6355950167d3b580edc22baa46a77068c18c42445c1c9c716d42bed3b30c5cd5bec359ab32d03843224dae458e9e32dc61693e7cf4bab23536e0 libxslt-1.1.33.tar.gz"
sha512sums="ebbe438a38bf6355950167d3b580edc22baa46a77068c18c42445c1c9c716d42bed3b30c5cd5bec359ab32d03843224dae458e9e32dc61693e7cf4bab23536e0 libxslt-1.1.33.tar.gz
9a97c5038809aaf64cb4eb7d67b95acc4b62236d7613a5f753e2a0f4c9e707c22cd07bda2e518d3f36a40b9ed5aa93496b743998c7adadb84ca147e045e35948 CVE-2019-11068.patch"
From e03553605b45c88f0b4b2980adfbbb8f6fca2fd6 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 24 Mar 2019 09:51:39 +0100
Subject: [PATCH] Fix security framework bypass
xsltCheckRead and xsltCheckWrite return -1 in case of error but callers
don't check for this condition and allow access. With a specially
crafted URL, xsltCheckRead could be tricked into returning an error
because of a supposedly invalid URL that would still be loaded
succesfully later on.
Fixes #12.
Thanks to Felix Wilhelm for the report.
---
libxslt/documents.c | 18 ++++++++++--------
libxslt/imports.c | 9 +++++----
libxslt/transform.c | 9 +++++----
libxslt/xslt.c | 9 +++++----
4 files changed, 25 insertions(+), 20 deletions(-)
diff --git a/libxslt/documents.c b/libxslt/documents.c
index 3f3a7312..4aad11bb 100644
--- a/libxslt/documents.c
+++ b/libxslt/documents.c
@@ -296,10 +296,11 @@ xsltLoadDocument(xsltTransformContextPtr ctxt, const xmlChar *URI) {
int res;
res = xsltCheckRead(ctxt->sec, ctxt, URI);
- if (res == 0) {
- xsltTransformError(ctxt, NULL, NULL,
- "xsltLoadDocument: read rights for %s denied\n",
- URI);
+ if (res <= 0) {
+ if (res == 0)
+ xsltTransformError(ctxt, NULL, NULL,
+ "xsltLoadDocument: read rights for %s denied\n",
+ URI);
return(NULL);
}
}
@@ -372,10 +373,11 @@ xsltLoadStyleDocument(xsltStylesheetPtr style, const xmlChar *URI) {
int res;
res = xsltCheckRead(sec, NULL, URI);
- if (res == 0) {
- xsltTransformError(NULL, NULL, NULL,
- "xsltLoadStyleDocument: read rights for %s denied\n",
- URI);
+ if (res <= 0) {
+ if (res == 0)
+ xsltTransformError(NULL, NULL, NULL,
+ "xsltLoadStyleDocument: read rights for %s denied\n",
+ URI);
return(NULL);
}
}
diff --git a/libxslt/imports.c b/libxslt/imports.c
index 874870cc..3783b247 100644
--- a/libxslt/imports.c
+++ b/libxslt/imports.c
@@ -130,10 +130,11 @@ xsltParseStylesheetImport(xsltStylesheetPtr style, xmlNodePtr cur) {
int secres;
secres = xsltCheckRead(sec, NULL, URI);
- if (secres == 0) {
- xsltTransformError(NULL, NULL, NULL,
- "xsl:import: read rights for %s denied\n",
- URI);
+ if (secres <= 0) {
+ if (secres == 0)
+ xsltTransformError(NULL, NULL, NULL,
+ "xsl:import: read rights for %s denied\n",
+ URI);
goto error;
}
}
diff --git a/libxslt/transform.c b/libxslt/transform.c
index 13793914..0636dbd0 100644
--- a/libxslt/transform.c
+++ b/libxslt/transform.c
@@ -3493,10 +3493,11 @@ xsltDocumentElem(xsltTransformContextPtr ctxt, xmlNodePtr node,
*/
if (ctxt->sec != NULL) {
ret = xsltCheckWrite(ctxt->sec, ctxt, filename);
- if (ret == 0) {
- xsltTransformError(ctxt, NULL, inst,
- "xsltDocumentElem: write rights for %s denied\n",
- filename);
+ if (ret <= 0) {
+ if (ret == 0)
+ xsltTransformError(ctxt, NULL, inst,
+ "xsltDocumentElem: write rights for %s denied\n",
+ filename);
xmlFree(URL);
xmlFree(filename);
return;
diff --git a/libxslt/xslt.c b/libxslt/xslt.c
index 780a5ad7..a234eb79 100644
--- a/libxslt/xslt.c
+++ b/libxslt/xslt.c
@@ -6763,10 +6763,11 @@ xsltParseStylesheetFile(const xmlChar* filename) {
int res;
res = xsltCheckRead(sec, NULL, filename);
- if (res == 0) {
- xsltTransformError(NULL, NULL, NULL,
- "xsltParseStylesheetFile: read rights for %s denied\n",
- filename);
+ if (res <= 0) {
+ if (res == 0)
+ xsltTransformError(NULL, NULL, NULL,
+ "xsltParseStylesheetFile: read rights for %s denied\n",
+ filename);
return(NULL);
}
}
--
2.18.1
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