diff --git a/srcpkgs/python-crypto/patches/CVE-2013-7459.patch b/srcpkgs/python-crypto/patches/CVE-2013-7459.patch new file mode 100644 index 00000000000..5cd7520b38d --- /dev/null +++ b/srcpkgs/python-crypto/patches/CVE-2013-7459.patch @@ -0,0 +1,84 @@ +From 8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4 Mon Sep 17 00:00:00 2001 +From: Legrandin +Date: Sun, 22 Dec 2013 22:24:46 +0100 +Subject: [PATCH] Throw exception when IV is used with ECB or CTR + +The IV parameter is currently ignored when initializing +a cipher in ECB or CTR mode. + +For CTR mode, it is confusing: it takes some time to see +that a different parameter is needed (the counter). + +For ECB mode, it is outright dangerous. + +This patch forces an exception to be raised. +--- + lib/Crypto/SelfTest/Cipher/common.py | 31 +++++++++++++++++++++++-------- + src/block_template.c | 11 +++++++++++ + 2 files changed, 34 insertions(+), 8 deletions(-) + +--- lib/Crypto/SelfTest/Cipher/common.py.orig ++++ lib/Crypto/SelfTest/Cipher/common.py +@@ -239,19 +239,34 @@ class RoundtripTest(unittest.TestCase): + return """%s .decrypt() output of .encrypt() should not be garbled""" % (self.module_name,) + + def runTest(self): +- for mode in (self.module.MODE_ECB, self.module.MODE_CBC, self.module.MODE_CFB, self.module.MODE_OFB, self.module.MODE_OPENPGP): ++ ++ ## ECB mode ++ mode = self.module.MODE_ECB ++ encryption_cipher = self.module.new(a2b_hex(self.key), mode) ++ ciphertext = encryption_cipher.encrypt(self.plaintext) ++ decryption_cipher = self.module.new(a2b_hex(self.key), mode) ++ decrypted_plaintext = decryption_cipher.decrypt(ciphertext) ++ self.assertEqual(self.plaintext, decrypted_plaintext) ++ ++ ## OPENPGP mode ++ mode = self.module.MODE_OPENPGP ++ encryption_cipher = self.module.new(a2b_hex(self.key), mode, self.iv) ++ eiv_ciphertext = encryption_cipher.encrypt(self.plaintext) ++ eiv = eiv_ciphertext[:self.module.block_size+2] ++ ciphertext = eiv_ciphertext[self.module.block_size+2:] ++ decryption_cipher = self.module.new(a2b_hex(self.key), mode, eiv) ++ decrypted_plaintext = decryption_cipher.decrypt(ciphertext) ++ self.assertEqual(self.plaintext, decrypted_plaintext) ++ ++ ## All other non-AEAD modes (but CTR) ++ for mode in (self.module.MODE_CBC, self.module.MODE_CFB, self.module.MODE_OFB): + encryption_cipher = self.module.new(a2b_hex(self.key), mode, self.iv) + ciphertext = encryption_cipher.encrypt(self.plaintext) +- +- if mode != self.module.MODE_OPENPGP: +- decryption_cipher = self.module.new(a2b_hex(self.key), mode, self.iv) +- else: +- eiv = ciphertext[:self.module.block_size+2] +- ciphertext = ciphertext[self.module.block_size+2:] +- decryption_cipher = self.module.new(a2b_hex(self.key), mode, eiv) ++ decryption_cipher = self.module.new(a2b_hex(self.key), mode, self.iv) + decrypted_plaintext = decryption_cipher.decrypt(ciphertext) + self.assertEqual(self.plaintext, decrypted_plaintext) + ++ + class PGPTest(unittest.TestCase): + def __init__(self, module, params): + unittest.TestCase.__init__(self) +--- src/block_template.c.orig ++++ src/block_template.c +@@ -170,6 +170,17 @@ ALGnew(PyObject *self, PyObject *args, P + "Key cannot be the null string"); + return NULL; + } ++ if (IVlen != 0 && mode == MODE_ECB) ++ { ++ PyErr_Format(PyExc_ValueError, "ECB mode does not use IV"); ++ return NULL; ++ } ++ if (IVlen != 0 && mode == MODE_CTR) ++ { ++ PyErr_Format(PyExc_ValueError, ++ "CTR mode needs counter parameter, not IV"); ++ return NULL; ++ } + if (IVlen != BLOCK_SIZE && mode != MODE_ECB && mode != MODE_CTR) + { + PyErr_Format(PyExc_ValueError, diff --git a/srcpkgs/python-crypto/template b/srcpkgs/python-crypto/template index 94ea84ad891..daaabd6bc93 100644 --- a/srcpkgs/python-crypto/template +++ b/srcpkgs/python-crypto/template @@ -1,7 +1,7 @@ # Template file for 'python-crypto' pkgname=python-crypto version=2.6.1 -revision=7 +revision=8 wrksrc="pycrypto-${version}" build_style=python-module hostmakedepends="python-devel python3-devel" @@ -12,7 +12,7 @@ short_desc="The Python Cryptography Toolkit (Python2)" maintainer="Juan RP " homepage="https://www.dlitz.net/software/pycrypto/" license="PSF, Public domain" -distfiles="http://ftp.dlitz.net/pub/dlitz/crypto/pycrypto/pycrypto-$version.tar.gz" +distfiles="https://ftp.dlitz.net/pub/dlitz/crypto/pycrypto/pycrypto-$version.tar.gz" checksum=f2ce1e989b272cfcb677616763e0a2e7ec659effa67a88aa92b3a65528f60a3c pre_build() {