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gnu: Add crypto++.

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* gnu/packages/crypto.scm (crypto++): New variable.
* gnu/packages/patches/crypto++-fix-dos-in-asn.1-decoders.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

Co-authored-by: Ricardo Wurmus <rekado@elephly.net>
This commit is contained in:
Pierre Langlois 2017-02-18 18:01:13 +00:00 committed by Ricardo Wurmus
parent 60b7ed9cb8
commit de98f4ed55
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GPG Key ID: 197A5888235FACAC
3 changed files with 98 additions and 0 deletions
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1
gnu/local.mk
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@ -579,6 +579,7 @@ dist_patch_DATA = \
%D%/packages/patches/crawl-upgrade-saves.patch \
%D%/packages/patches/crda-optional-gcrypt.patch \
%D%/packages/patches/crossmap-allow-system-pysam.patch \
%D%/packages/patches/crypto++-fix-dos-in-asn.1-decoders.patch \
%D%/packages/patches/clucene-contribs-lib.patch \
%D%/packages/patches/cube-nocheck.patch \
%D%/packages/patches/cursynth-wave-rand.patch \

32
gnu/packages/crypto.scm
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@ -6,6 +6,7 @@
;;; Copyright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2016, 2017 ng0 <ng0@infotropique.org>
;;; Copyright © 2016, 2017 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2017 Pierre Langlois <pierre.langlois@gmx.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -29,6 +30,7 @@
#:use-module (gnu packages attr)
#:use-module (gnu packages autotools)
#:use-module (gnu packages boost)
#:use-module (gnu packages compression)
#:use-module (gnu packages cryptsetup)
#:use-module (gnu packages gettext)
#:use-module (gnu packages gnupg)
@ -632,3 +634,33 @@ data on your platform, so the seed itself will be as random as possible.
Networking and Cryptography library. These libraries have a stated goal
of improving usability, security and speed.")
(license license:asl2.0)))
(define-public crypto++
(package
(name "crypto++")
(version "5.6.5")
(source (origin
(method url-fetch/zipbomb)
(uri (string-append "https://cryptopp.com/cryptopp"
(string-join (string-split version #\.) "")
".zip"))
(sha256
(base32
"0d1cqdz369ivi082k59025wvxzywvkizw7i0pf5h0a1izs3g8pm7"))
(patches
(search-patches "crypto++-fix-dos-in-asn.1-decoders.patch"))))
(build-system gnu-build-system)
(arguments
`(#:make-flags
(list (string-append "PREFIX=" (assoc-ref %outputs "out")))
#:phases
(modify-phases %standard-phases
(delete 'configure))))
(native-inputs
`(("unzip" ,unzip)))
(home-page "https://cryptopp.com/")
(synopsis "C++ class library of cryptographic schemes")
(description "Crypto++ is a C++ class library of cryptographic schemes.")
;; The compilation is distributed under the Boost license; the individual
;; files in the compilation are in the public domain.
(license (list license:boost1.0 license:public-domain))))

65
gnu/packages/patches/crypto++-fix-dos-in-asn.1-decoders.patch Normal file
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@ -0,0 +1,65 @@
From 3d9181d7bdd8e491f745dbc9e34bd20b6f6da069 Mon Sep 17 00:00:00 2001
From: Gergely Nagy <ngg@tresorit.com>
Date: Wed, 14 Dec 2016 13:19:01 +0100
Subject: [PATCH] Fix possible DoS in ASN.1 decoders (CVE-2016-9939)
---
asn.cpp | 10 ++++++++++
asn.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/asn.cpp b/asn.cpp
index 297ff010..2e923ef7 100644
--- a/asn.cpp
+++ b/asn.cpp
@@ -123,6 +123,8 @@ size_t BERDecodeOctetString(BufferedTransformation &bt, SecByteBlock &str)
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
+ if (bc > bt.MaxRetrievable())
+ BERDecodeError();
str.New(bc);
if (bc != bt.Get(str, bc))
@@ -139,6 +141,8 @@ size_t BERDecodeOctetString(BufferedTransformation &bt, BufferedTransformation &
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
+ if (bc > bt.MaxRetrievable())
+ BERDecodeError();
bt.TransferTo(str, bc);
return bc;
@@ -161,6 +165,8 @@ size_t BERDecodeTextString(BufferedTransformation &bt, std::string &str, byte as
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
+ if (bc > bt.MaxRetrievable())
+ BERDecodeError();
SecByteBlock temp(bc);
if (bc != bt.Get(temp, bc))
@@ -188,6 +194,10 @@ size_t BERDecodeBitString(BufferedTransformation &bt, SecByteBlock &str, unsigne
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
+ if (bc == 0)
+ BERDecodeError();
+ if (bc > bt.MaxRetrievable())
+ BERDecodeError();
byte unused;
if (!bt.Get(unused))
diff --git a/asn.h b/asn.h
index ed9de52c..33f0dd09 100644
--- a/asn.h
+++ b/asn.h
@@ -498,6 +498,8 @@ void BERDecodeUnsigned(BufferedTransformation &in, T &w, byte asnTag = INTEGER,
bool definite = BERLengthDecode(in, bc);
if (!definite)
BERDecodeError();
+ if (bc > in.MaxRetrievable())
+ BERDecodeError();
SecByteBlock buf(bc);