community/patchwork: security fix for CVE-2019-13122

2 files changed, 100 insertions, 4 deletions

diff --git a/community/patchwork/APKBUILD b/community/patchwork/APKBUILD
index 93117533ba5..6cc8e9a1c1f 100644
--- a/community/patchwork/APKBUILD
+++ b/community/patchwork/APKBUILD
@@ -2,7 +2,7 @@
 # Maintainer: Francesco Colista <fcolista@alpinelinux.org>
 pkgname=patchwork
 pkgver=2.0.1
-pkgrel=0
+pkgrel=1
 pkgdesc="Web-based patch tracking system"
 url="https://github.com/getpatchwork/patchwork"
 arch="noarch"
@@ -15,12 +15,16 @@ source="$pkgname-$pkgver.tar.gz::https://github.com/getpatchwork/$pkgname/archiv
 	0001-support-busybox-readlink.patch
 	0002-remove-uneeded-bashism-from-tools-and-change-path.patch
 	nginx-uwsgi-patchwork-conf.ini
-	nginx-patchwork.conf"
+	nginx-patchwork.conf
+	CVE-2019-13122.patch"
 
 builddir="$srcdir"/$pkgname-$pkgver
 
+# secfixes:
+#   2.0.1-r1:
+#     - CVE-2019-13122
+
 build() {
-	cd "$builddir"
 	return 0
 }
 
@@ -80,4 +84,5 @@ sha512sums="95dcfcdf19de0a65a77ab4274de82457c969e3a65705da25cbec742e4d6671e51e62
 5facc2c2620b2d614011bcdc06bb481fb1481c79333579e5a7fa5b8bc4f97d1651cc8c4632a5e150b62674d64c00345341229319f1edb2016721868e84146826  0001-support-busybox-readlink.patch
 f6d3590b3ac53797e0ae25fe50ab0935608be5ded44665599cbc91e93558895eddc6a7a717153d81fc194b314d7854686577ef5ecf9e0302b7824ce3b3863f7b  0002-remove-uneeded-bashism-from-tools-and-change-path.patch
 28911a25e00a254237f7214fb681e5e984a2eae331e610be62967d5e246958e0f8d3f84861d8fd17c1190c1df72a25f28ddb33843b3679a3864beb00cb4b4961  nginx-uwsgi-patchwork-conf.ini
-862dd2522236a0b18d2a8d06f1ad91ad0fd0936fa502d95e09556641e67d42e1212821bfd7fb98923e4fe8b8a7369ded8c23831fb496b1e2833d9831c1b23725  nginx-patchwork.conf"
+862dd2522236a0b18d2a8d06f1ad91ad0fd0936fa502d95e09556641e67d42e1212821bfd7fb98923e4fe8b8a7369ded8c23831fb496b1e2833d9831c1b23725  nginx-patchwork.conf
+fb1e70245d285e725a85d8c37a97ba5d393ccd7c1704130be9d518a44721e23ffe85345e325ef172bc23c959a3159b113616c5ecd8b80c560730a79177272f8a  CVE-2019-13122.patch"
diff --git a/community/patchwork/CVE-2019-13122.patch b/community/patchwork/CVE-2019-13122.patch
new file mode 100644
index 00000000000..4c23714a2cf
--- /dev/null
+++ b/community/patchwork/CVE-2019-13122.patch
@@ -0,0 +1,91 @@
+From 556f750d8d723791fded3476bcd9885d4b97355b Mon Sep 17 00:00:00 2001

+From: Andrew Donnellan <ajd@linux.ibm.com>

+Date: Mon, 1 Jul 2019 15:28:03 +1000

+Subject: [PATCH 1/2] templatetags: Do not mark output of msgid tag as safe

+

+The msgid template tag exists to remove angle brackets from either side of

+the Message-ID header.

+

+It also marks its output as safe, meaning it does not get autoescaped by

+Django templating.

+

+Its output is not safe. A maliciously crafted email can include HTML tags

+inside the Message-ID header, and as long as the angle brackets are not at

+the start and end of the header, we will quite happily render them.

+

+Rather than using mark_safe(), use escape() to explicitly escape the

+Message-ID.

+

+Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>

+---

+ patchwork/templatetags/patch.py | 3 ++-

+ 1 file changed, 2 insertions(+), 1 deletion(-)

+

+diff --git a/patchwork/templatetags/patch.py b/patchwork/templatetags/patch.py

+index ea5a71de362f..757f873b6043 100644

+--- a/patchwork/templatetags/patch.py

++++ b/patchwork/templatetags/patch.py

+@@ -5,6 +5,7 @@

+ # SPDX-License-Identifier: GPL-2.0-or-later

+ 

+ from django import template

++from django.utils.html import escape

+ from django.utils.safestring import mark_safe

+ from django.template.defaultfilters import stringfilter

+ 

+@@ -64,4 +65,4 @@ def patch_checks(patch):

+ @register.filter

+ @stringfilter

+ def msgid(value):

+-    return mark_safe(value.strip('<>'))

++    return escape(value.strip('<>'))

+-- 

+2.20.1

+

+From 3bf1aa7568a9a1f08f13ed28c5ac6102841bd4dd Mon Sep 17 00:00:00 2001

+From: Andrew Donnellan <ajd@linux.ibm.com>

+Date: Mon, 1 Jul 2019 18:04:53 +1000

+Subject: [PATCH 2/2] tests: Add test for unescaped values in patch detail page

+

+Add a test to check whether we are escaping values from the Patch model on

+the patch detail page.

+

+This test shouldn't be relied upon as proof that we've escaped everything

+correctly, but may help catch regressions.

+

+Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>

+---

+ patchwork/tests/test_detail.py | 17 +++++++++++++++++

+ 1 file changed, 17 insertions(+)

+

+diff --git a/patchwork/tests/test_detail.py b/patchwork/tests/test_detail.py

+index 4ca1c9cda2f9..18408ecb95f6 100644

+--- a/patchwork/tests/test_detail.py

++++ b/patchwork/tests/test_detail.py

+@@ -34,6 +34,23 @@ class PatchViewTest(TestCase):

+         response = self.client.get(requested_url)

+         self.assertRedirects(response, redirect_url)

+ 

++    def test_escaping(self):

++        # Warning: this test doesn't guarantee anything - it only tests some

++        # fields

++        unescaped_string = 'blah<b>TEST</b>blah'

++        patch = create_patch()

++        patch.diff = unescaped_string

++        patch.commit_ref = unescaped_string

++        patch.pull_url = unescaped_string

++        patch.name = unescaped_string

++        patch.msgid = unescaped_string

++        patch.headers = unescaped_string

++        patch.content = unescaped_string

++        patch.save()

++        requested_url = reverse('patch-detail', kwargs={'patch_id': patch.id})

++        response = self.client.get(requested_url)

++        self.assertNotIn('<b>TEST</b>'.encode('utf-8'), response.content)

++

+ 

+ class CommentRedirectTest(TestCase):

+ 

+-- 

+2.20.1

+