nixpkgs/pkgs/development/libraries/openssl/default.nix
Martin Weinelt bb4f46855f openssl: 1.1.1f → 1.1.1g
Fixes: CVE-2020-1967

Segmentation fault in SSL_check_chain (CVE-2020-1967)
=====================================================

Severity: High

Server or client applications that call the SSL_check_chain() function during or
after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a
result of incorrect handling of the "signature_algorithms_cert" TLS extension.
The crash occurs if an invalid or unrecognised signature algorithm is received
from the peer. This could be exploited by a malicious peer in a Denial of
Service attack.

OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue.  This
issue did not affect OpenSSL versions prior to 1.1.1d.

Affected OpenSSL 1.1.1 users should upgrade to 1.1.1g

This issue was found by Bernd Edlinger and reported to OpenSSL on 7th April
2020. It was found using the new static analysis pass being implemented in GCC,
- -fanalyzer. Additional analysis was performed by Matt Caswell and Benjamin
Kaduk.
2020-04-22 02:14:44 +02:00

170 lines
5.8 KiB
Nix

{ stdenv, fetchurl, buildPackages, perl, coreutils
, withCryptodev ? false, cryptodev
, enableSSL2 ? false
, enableSSL3 ? false
, static ? false
}:
with stdenv.lib;
let
common = { version, sha256, patches ? [], withDocs ? false, extraMeta ? {} }:
stdenv.mkDerivation rec {
pname = "openssl";
inherit version;
src = fetchurl {
url = "https://www.openssl.org/source/${pname}-${version}.tar.gz";
inherit sha256;
};
inherit patches;
postPatch = ''
patchShebangs Configure
'' + optionalString (versionOlder version "1.1.0") ''
patchShebangs test/*
for a in test/t* ; do
substituteInPlace "$a" \
--replace /bin/rm rm
done
'' + optionalString (versionAtLeast version "1.1.1") ''
substituteInPlace config --replace '/usr/bin/env' '${coreutils}/bin/env'
'' + optionalString (versionAtLeast version "1.1.0" && stdenv.hostPlatform.isMusl) ''
substituteInPlace crypto/async/arch/async_posix.h \
--replace '!defined(__ANDROID__) && !defined(__OpenBSD__)' \
'!defined(__ANDROID__) && !defined(__OpenBSD__) && 0'
'';
outputs = [ "bin" "dev" "out" "man" ] ++ optional withDocs "doc";
setOutputFlags = false;
separateDebugInfo = !(stdenv.hostPlatform.useLLVM or false) && stdenv.cc.isGNU;
nativeBuildInputs = [ perl ];
buildInputs = stdenv.lib.optional withCryptodev cryptodev;
# TODO(@Ericson2314): Improve with mass rebuild
configurePlatforms = [];
configureScript = {
armv5tel-linux = "./Configure linux-armv4 -march=armv5te";
armv6l-linux = "./Configure linux-armv4 -march=armv6";
armv7l-linux = "./Configure linux-armv4 -march=armv7-a";
x86_64-darwin = "./Configure darwin64-x86_64-cc";
x86_64-linux = "./Configure linux-x86_64";
x86_64-solaris = "./Configure solaris64-x86_64-gcc";
}.${stdenv.hostPlatform.system} or (
if stdenv.hostPlatform == stdenv.buildPlatform
then "./config"
else if stdenv.hostPlatform.isMinGW
then "./Configure mingw${optionalString
(stdenv.hostPlatform.parsed.cpu.bits != 32)
(toString stdenv.hostPlatform.parsed.cpu.bits)}"
else if stdenv.hostPlatform.isLinux
then (if stdenv.hostPlatform.isx86_64
then "./Configure linux-x86_64"
else "./Configure linux-generic${toString stdenv.hostPlatform.parsed.cpu.bits}")
else if stdenv.hostPlatform.isiOS
then "./Configure ios${toString stdenv.hostPlatform.parsed.cpu.bits}-cross"
else
throw "Not sure what configuration to use for ${stdenv.hostPlatform.config}"
);
configureFlags = [
"shared" # "shared" builds both shared and static libraries
"--libdir=lib"
"--openssldir=etc/ssl"
] ++ stdenv.lib.optionals withCryptodev [
"-DHAVE_CRYPTODEV"
"-DUSE_CRYPTODEV_DIGESTS"
] ++ stdenv.lib.optional enableSSL2 "enable-ssl2"
++ stdenv.lib.optional enableSSL3 "enable-ssl3"
++ stdenv.lib.optional (versionAtLeast version "1.1.0" && stdenv.hostPlatform.isAarch64) "no-afalgeng"
# OpenSSL needs a specific `no-shared` configure flag.
# See https://wiki.openssl.org/index.php/Compilation_and_Installation#Configure_Options
# for a comprehensive list of configuration options.
++ stdenv.lib.optional (versionAtLeast version "1.1.0" && static) "no-shared";
makeFlags = [
"MANDIR=$(man)/share/man"
# This avoids conflicts between man pages of openssl subcommands (for
# example 'ts' and 'err') man pages and their equivalent top-level
# command in other packages (respectively man-pages and moreutils).
# This is done in ubuntu and archlinux, and possiibly many other distros.
"MANSUFFIX=ssl"
];
enableParallelBuilding = true;
postInstall =
stdenv.lib.optionalString (!static) ''
# If we're building dynamic libraries, then don't install static
# libraries.
if [ -n "$(echo $out/lib/*.so $out/lib/*.dylib $out/lib/*.dll)" ]; then
rm "$out/lib/"*.a
fi
'' +
''
mkdir -p $bin
'' + stdenv.lib.optionalString (!stdenv.hostPlatform.isWindows)
''
substituteInPlace $out/bin/c_rehash --replace ${buildPackages.perl} ${perl}
'' +
''
mv $out/bin $bin/
mkdir $dev
mv $out/include $dev/
# remove dependency on Perl at runtime
rm -r $out/etc/ssl/misc
rmdir $out/etc/ssl/{certs,private}
'';
postFixup = stdenv.lib.optionalString (!stdenv.hostPlatform.isWindows) ''
# Check to make sure the main output doesn't depend on perl
if grep -r '${buildPackages.perl}' $out; then
echo "Found an erroneous dependency on perl ^^^" >&2
exit 1
fi
'';
meta = with stdenv.lib; {
homepage = "https://www.openssl.org/";
description = "A cryptographic library that implements the SSL and TLS protocols";
license = licenses.openssl;
platforms = platforms.all;
maintainers = [ maintainers.peti ];
} // extraMeta;
};
in {
openssl_1_0_2 = common {
version = "1.0.2u";
sha256 = "ecd0c6ffb493dd06707d38b14bb4d8c2288bb7033735606569d8f90f89669d16";
patches = [
./1.0.2/nix-ssl-cert-file.patch
(if stdenv.hostPlatform.isDarwin
then ./1.0.2/use-etc-ssl-certs-darwin.patch
else ./1.0.2/use-etc-ssl-certs.patch)
];
extraMeta.knownVulnerabilities = [ "Support for OpenSSL 1.0.2 ended with 2019." ];
};
openssl_1_1 = common {
version = "1.1.1g";
sha256 = "0ikdcc038i7jk8h7asq5xcn8b1xc2rrbc88yfm4hqbz3y5s4gc6x";
patches = [
./1.1/nix-ssl-cert-file.patch
(if stdenv.hostPlatform.isDarwin
then ./1.1/use-etc-ssl-certs-darwin.patch
else ./1.1/use-etc-ssl-certs.patch)
];
withDocs = true;
};
}