Your message dated Sat, 06 May 2017 14:44:18 +0100
with message-id <[email protected]>
and subject line Closing bugs for updates included in 8.8
has caused the Debian Bug report #850003,
regarding jessie-pu: package python-cryptography/0.6.1-1+deb8u1
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
850003: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850003
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: jessie
User: [email protected]
Usertags: pu
Backport the fix for CVE-2016-9243 which was deemed not severe enough for a
DSA. I've attached a full debdiff, the patch is quite small and self-contained,
although I needed another patch to fix building against the libssl now in
jessie.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'),
(101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.8.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_ZA.utf8, LC_CTYPE=en_ZA.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
diff -Nru python-cryptography-0.6.1/debian/changelog
python-cryptography-0.6.1/debian/changelog
--- python-cryptography-0.6.1/debian/changelog 2014-10-16 06:46:31.000000000
+0200
+++ python-cryptography-0.6.1/debian/changelog 2017-01-01 22:19:17.000000000
+0200
@@ -1,3 +1,12 @@
+python-cryptography (0.6.1-1+deb8u1) stable; urgency=high
+
+ * Stable update.
+ * Backport the fix for CVE-2016-9243 (HKDF returns an empty byte string
+ for small key sizes).
+ * Fix FTBFS due to SSL2 method detection.
+
+ -- Tristan Seligmann <[email protected]> Sun, 01 Jan 2017 22:19:17 +0200
+
python-cryptography (0.6.1-1) unstable; urgency=medium
* New upstream release.
diff -Nru python-cryptography-0.6.1/debian/patches/3215.patch
python-cryptography-0.6.1/debian/patches/3215.patch
--- python-cryptography-0.6.1/debian/patches/3215.patch 1970-01-01
02:00:00.000000000 +0200
+++ python-cryptography-0.6.1/debian/patches/3215.patch 2017-01-01
22:19:17.000000000 +0200
@@ -0,0 +1,40 @@
+From d945a5213f2b2bbb189bbc2be407aa35e0dab204 Mon Sep 17 00:00:00 2001
+From: Alex Gaynor <[email protected]>
+Date: Sat, 5 Nov 2016 21:18:15 -0400
+Subject: [PATCH] Fixes #3211 -- fixed hkdf's output with short length
+
+Index: python-cryptography/cryptography/hazmat/primitives/kdf/hkdf.py
+===================================================================
+--- python-cryptography.orig/cryptography/hazmat/primitives/kdf/hkdf.py
2017-01-01 22:24:27.090828930 +0200
++++ python-cryptography/cryptography/hazmat/primitives/kdf/hkdf.py
2017-01-01 22:24:27.086828861 +0200
+@@ -99,7 +99,7 @@
+ output = [b""]
+ counter = 1
+
+- while (self._algorithm.digest_size // 8) * len(output) < self._length:
++ while self._algorithm.digest_size * (len(output) - 1) < self._length:
+ h = hmac.HMAC(key_material, self._algorithm,
backend=self._backend)
+ h.update(output[-1])
+ h.update(self._info)
+Index: python-cryptography/tests/hazmat/primitives/test_hkdf.py
+===================================================================
+--- python-cryptography.orig/tests/hazmat/primitives/test_hkdf.py
2017-01-01 22:24:27.090828930 +0200
++++ python-cryptography/tests/hazmat/primitives/test_hkdf.py 2017-01-01
22:24:27.086828861 +0200
+@@ -152,6 +152,17 @@
+
+ hkdf.verify(b"foo", six.u("bar"))
+
++ def test_derive_short_output(self, backend):
++ hkdf = HKDF(
++ hashes.SHA256(),
++ 4,
++ salt=None,
++ info=None,
++ backend=backend
++ )
++
++ assert hkdf.derive(b"\x01" * 16) == b"gJ\xfb{"
++
+
+ @pytest.mark.hmac
+ class TestHKDFExpand(object):
diff -Nru python-cryptography-0.6.1/debian/patches/series
python-cryptography-0.6.1/debian/patches/series
--- python-cryptography-0.6.1/debian/patches/series 1970-01-01
02:00:00.000000000 +0200
+++ python-cryptography-0.6.1/debian/patches/series 2017-01-01
22:19:17.000000000 +0200
@@ -0,0 +1,2 @@
+ssl2-detection.patch
+3215.patch
diff -Nru python-cryptography-0.6.1/debian/patches/ssl2-detection.patch
python-cryptography-0.6.1/debian/patches/ssl2-detection.patch
--- python-cryptography-0.6.1/debian/patches/ssl2-detection.patch
1970-01-01 02:00:00.000000000 +0200
+++ python-cryptography-0.6.1/debian/patches/ssl2-detection.patch
2017-01-01 22:19:17.000000000 +0200
@@ -0,0 +1,13 @@
+Index: python-cryptography/cryptography/hazmat/bindings/openssl/ssl.py
+===================================================================
+--- python-cryptography.orig/cryptography/hazmat/bindings/openssl/ssl.py
2017-01-01 22:33:41.640198755 +0200
++++ python-cryptography/cryptography/hazmat/bindings/openssl/ssl.py
2017-01-01 22:34:20.336845122 +0200
+@@ -384,7 +384,7 @@
+ #else
+ static const long Cryptography_HAS_SECURE_RENEGOTIATION = 1;
+ #endif
+-#ifdef OPENSSL_NO_SSL2
++#ifdef OPENSSL_NO_SSL2_METHOD
+ static const long Cryptography_HAS_SSL2 = 0;
+ SSL_METHOD* (*SSLv2_method)(void) = NULL;
+ SSL_METHOD* (*SSLv2_client_method)(void) = NULL;
--- End Message ---
--- Begin Message ---
Version: 8.8
Hi,
Each of these bugs refers to an update that was included in today's
jessie point release. Thanks!
Regards,
Adam
--- End Message ---
