net-misc/openssh: Security bump for CVE-2016-0777 (bug #571892).

Package-Manager: portage-2.2.26
Signed-off-by: Lars Wendler <[email protected]>

net-misc/openssh/files/openssh-7.1_p1-CVE-2016-0777.patch

@@ -0,0 +1,33 @@
+--- openssh-7.1p1/readconf.c
++++ openssh-7.1p1/readconf.c
+@@ -1660,7 +1660,7 @@
+ 	options->tun_remote = -1;
+ 	options->local_command = NULL;
+ 	options->permit_local_command = -1;
+-	options->use_roaming = -1;
++	options->use_roaming = 0;
+ 	options->visual_host_key = -1;
+ 	options->ip_qos_interactive = -1;
+ 	options->ip_qos_bulk = -1;
+@@ -1833,8 +1833,7 @@
+ 		options->tun_remote = SSH_TUNID_ANY;
+ 	if (options->permit_local_command == -1)
+ 		options->permit_local_command = 0;
+-	if (options->use_roaming == -1)
+-		options->use_roaming = 1;
++	options->use_roaming = 0;
+ 	if (options->visual_host_key == -1)
+ 		options->visual_host_key = 0;
+ 	if (options->ip_qos_interactive == -1)
+--- openssh-7.1p1/ssh.c
++++ openssh-7.1p1/ssh.c
+@@ -1932,9 +1932,6 @@
+ 			fork_postauth();
+ 	}
+
+-	if (options.use_roaming)
+-		request_roaming();
+-
+ 	return client_loop(tty_flag, tty_flag ?
+ 	    options.escape_char : SSH_ESCAPECHAR_NONE, id);
+ }

net-misc/openssh/openssh-7.1_p1-r3.ebuild

@@ -0,0 +1,327 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+inherit eutils user flag-o-matic multilib autotools pam systemd versionator
+
+# Make it more portable between straight releases
+# and _p? releases.
+PARCH=${P/_}
+
+HPN_PATCH="${PARCH}-hpnssh14v9.tar.xz"
+LDAP_PATCH="${PN}-lpk-6.8p1-0.3.14.patch.xz"
+X509_VER="8.6" X509_PATCH="${PN}-${PV//_}+x509-${X509_VER}.diff.gz"
+
+DESCRIPTION="Port of OpenBSD's free SSH release"
+HOMEPAGE="http://www.openssh.org/"
+SRC_URI="mirror://openbsd/OpenSSH/portable/${PARCH}.tar.gz
+	mirror://gentoo/${PN}-6.8_p1-sctp.patch.xz
+	${HPN_PATCH:+hpn? (
+		mirror://gentoo/${HPN_PATCH}
+		mirror://sourceforge/hpnssh/${HPN_PATCH}
+	)}
+	${LDAP_PATCH:+ldap? ( mirror://gentoo/${LDAP_PATCH} )}
+	${X509_PATCH:+X509? ( http://roumenpetrov.info/openssh/x509-${X509_VER}/${X509_PATCH} )}
+	"
+
+LICENSE="BSD GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd ~arm-linux ~x86-linux"
+# Probably want to drop ssl defaulting to on in a future version.
+IUSE="bindist debug ${HPN_PATCH:++}hpn kerberos kernel_linux ldap ldns libedit libressl pam +pie sctp selinux skey ssh1 +ssl static X X509"
+REQUIRED_USE="ldns? ( ssl )
+	pie? ( !static )
+	ssh1? ( ssl )
+	static? ( !kerberos !pam )
+	X509? ( !ldap ssl )"
+
+LIB_DEPEND="
+	ldns? (
+		net-libs/ldns[static-libs(+)]
+		!bindist? ( net-libs/ldns[ecdsa,ssl] )
+		bindist? ( net-libs/ldns[-ecdsa,ssl] )
+	)
+	libedit? ( dev-libs/libedit[static-libs(+)] )
+	sctp? ( net-misc/lksctp-tools[static-libs(+)] )
+	selinux? ( >=sys-libs/libselinux-1.28[static-libs(+)] )
+	skey? ( >=sys-auth/skey-1.1.5-r1[static-libs(+)] )
+	ssl? (
+		!libressl? (
+			>=dev-libs/openssl-0.9.8f:0[bindist=]
+			dev-libs/openssl:0[static-libs(+)]
+		)
+		libressl? ( dev-libs/libressl[static-libs(+)] )
+	)
+	>=sys-libs/zlib-1.2.3[static-libs(+)]"
+RDEPEND="
+	!static? ( ${LIB_DEPEND//\[static-libs(+)]} )
+	pam? ( virtual/pam )
+	kerberos? ( virtual/krb5 )
+	ldap? ( net-nds/openldap )"
+DEPEND="${RDEPEND}
+	static? ( ${LIB_DEPEND} )
+	virtual/pkgconfig
+	virtual/os-headers
+	sys-devel/autoconf"
+RDEPEND="${RDEPEND}
+	pam? ( >=sys-auth/pambase-20081028 )
+	userland_GNU? ( virtual/shadow )
+	X? ( x11-apps/xauth )"
+
+S=${WORKDIR}/${PARCH}
+
+pkg_setup() {
+	# this sucks, but i'd rather have people unable to `emerge -u openssh`
+	# than not be able to log in to their server any more
+	maybe_fail() { [[ -z ${!2} ]] && echo "$1" ; }
+	local fail="
+		$(use X509 && maybe_fail X509 X509_PATCH)
+		$(use ldap && maybe_fail ldap LDAP_PATCH)
+		$(use hpn && maybe_fail hpn HPN_PATCH)
+	"
+	fail=$(echo ${fail})
+	if [[ -n ${fail} ]] ; then
+		eerror "Sorry, but this version does not yet support features"
+		eerror "that you requested:	 ${fail}"
+		eerror "Please mask ${PF} for now and check back later:"
+		eerror " # echo '=${CATEGORY}/${PF}' >> /etc/portage/package.mask"
+		die "booooo"
+	fi
+
+	# Make sure people who are using tcp wrappers are notified of its removal. #531156
+	if grep -qs '^ *sshd *:' "${EROOT}"/etc/hosts.{allow,deny} ; then
+		ewarn "Sorry, but openssh no longer supports tcp-wrappers, and it seems like"
+		ewarn "you're trying to use it.  Update your ${EROOT}etc/hosts.{allow,deny} please."
+	fi
+}
+
+save_version() {
+	# version.h patch conflict avoidence
+	mv version.h version.h.$1
+	cp -f version.h.pristine version.h
+}
+
+src_prepare() {
+	sed -i \
+		-e "/_PATH_XAUTH/s:/usr/X11R6/bin/xauth:${EPREFIX}/usr/bin/xauth:" \
+		pathnames.h || die
+	# keep this as we need it to avoid the conflict between LPK and HPN changing
+	# this file.
+	cp version.h version.h.pristine
+
+	# don't break .ssh/authorized_keys2 for fun
+	sed -i '/^AuthorizedKeysFile/s:^:#:' sshd_config || die
+
+	if use X509 ; then
+		pushd .. >/dev/null
+		pushd ${HPN_PATCH%.*.*} >/dev/null
+		epatch "${FILESDIR}"/${PN}-7.1_p1-hpn-x509-glue.patch
+		popd >/dev/null
+		epatch "${FILESDIR}"/${PN}-7.0_p1-sctp-x509-glue.patch
+		popd >/dev/null
+		epatch "${WORKDIR}"/${X509_PATCH%.*}
+		epatch "${FILESDIR}"/${PN}-6.3_p1-x509-hpn14v2-glue.patch
+		epatch "${FILESDIR}"/${PN}-6.9_p1-x509-warnings.patch
+		save_version X509
+	fi
+	if use ldap ; then
+		epatch "${WORKDIR}"/${LDAP_PATCH%.*}
+		save_version LPK
+	fi
+	epatch "${FILESDIR}"/${PN}-4.7_p1-GSSAPI-dns.patch #165444 integrated into gsskex
+	epatch "${FILESDIR}"/${PN}-6.7_p1-openssl-ignore-status.patch
+	# The X509 patchset fixes this independently.
+	use X509 || epatch "${FILESDIR}"/${PN}-6.8_p1-ssl-engine-configure.patch
+	epatch "${WORKDIR}"/${PN}-6.8_p1-sctp.patch
+	if use hpn ; then
+		EPATCH_FORCE="yes" EPATCH_SUFFIX="patch" \
+			EPATCH_MULTI_MSG="Applying HPN patchset ..." \
+			epatch "${WORKDIR}"/${HPN_PATCH%.*.*}
+		save_version HPN
+	fi
+
+	epatch "${FILESDIR}"/${PN}-7.1_p1-CVE-2016-0777.patch
+
+	tc-export PKG_CONFIG
+	local sed_args=(
+		-e "s:-lcrypto:$(${PKG_CONFIG} --libs openssl):"
+		# Disable PATH reset, trust what portage gives us #254615
+		-e 's:^PATH=/:#PATH=/:'
+		# Disable fortify flags ... our gcc does this for us
+		-e 's:-D_FORTIFY_SOURCE=2::'
+	)
+	# The -ftrapv flag ICEs on hppa #505182
+	use hppa && sed_args+=(
+		-e '/CFLAGS/s:-ftrapv:-fdisable-this-test:'
+		-e '/OSSH_CHECK_CFLAG_LINK.*-ftrapv/d'
+	)
+	sed -i "${sed_args[@]}" configure{.ac,} || die
+
+	epatch_user #473004
+
+	# Now we can build a sane merged version.h
+	(
+		sed '/^#define SSH_RELEASE/d' version.h.* | sort -u
+		macros=()
+		for p in HPN LPK X509 ; do [ -e version.h.${p} ] && macros+=( SSH_${p} ) ; done
+		printf '#define SSH_RELEASE SSH_VERSION SSH_PORTABLE %s\n' "${macros}"
+	) > version.h
+
+	eautoreconf
+}
+
+src_configure() {
+	addwrite /dev/ptmx
+
+	use debug && append-cppflags -DSANDBOX_SECCOMP_FILTER_DEBUG
+	use static && append-ldflags -static
+
+	local myconf=(
+		--with-ldflags="${LDFLAGS}"
+		--disable-strip
+		--with-pid-dir="${EPREFIX}"$(usex kernel_linux '' '/var')/run
+		--sysconfdir="${EPREFIX}"/etc/ssh
+		--libexecdir="${EPREFIX}"/usr/$(get_libdir)/misc
+		--datadir="${EPREFIX}"/usr/share/openssh
+		--with-privsep-path="${EPREFIX}"/var/empty
+		--with-privsep-user=sshd
+		$(use_with kerberos kerberos5 "${EPREFIX}"/usr)
+		# We apply the ldap patch conditionally, so can't pass --without-ldap
+		# unconditionally else we get unknown flag warnings.
+		$(use ldap && use_with ldap)
+		$(use_with ldns)
+		$(use_with libedit)
+		$(use_with pam)
+		$(use_with pie)
+		$(use_with sctp)
+		$(use_with selinux)
+		$(use_with skey)
+		$(use_with ssh1)
+		# The X509 patch deletes this option entirely.
+		$(use X509 || use_with ssl openssl)
+		$(use_with ssl md5-passwords)
+		$(use_with ssl ssl-engine)
+	)
+
+	# The seccomp sandbox is broken on x32, so use the older method for now. #553748
+	use amd64 && [[ ${ABI} == "x32" ]] && myconf+=( --with-sandbox=rlimit )
+
+	econf "${myconf[@]}"
+}
+
+src_install() {
+	emake install-nokeys DESTDIR="${D}"
+	fperms 600 /etc/ssh/sshd_config
+	dobin contrib/ssh-copy-id
+	newinitd "${FILESDIR}"/sshd.rc6.4 sshd
+	newconfd "${FILESDIR}"/sshd.confd sshd
+	keepdir /var/empty
+
+	newpamd "${FILESDIR}"/sshd.pam_include.2 sshd
+	if use pam ; then
+		sed -i \
+			-e "/^#UsePAM /s:.*:UsePAM yes:" \
+			-e "/^#PasswordAuthentication /s:.*:PasswordAuthentication no:" \
+			-e "/^#PrintMotd /s:.*:PrintMotd no:" \
+			-e "/^#PrintLastLog /s:.*:PrintLastLog no:" \
+			"${ED}"/etc/ssh/sshd_config || die
+	fi
+
+	# Gentoo tweaks to default config files
+	cat <<-EOF >> "${ED}"/etc/ssh/sshd_config
+
+	# Allow client to pass locale environment variables #367017
+	AcceptEnv LANG LC_*
+	EOF
+	cat <<-EOF >> "${ED}"/etc/ssh/ssh_config
+
+	# Send locale environment variables #367017
+	SendEnv LANG LC_*
+	EOF
+
+	if ! use X509 && [[ -n ${LDAP_PATCH} ]] && use ldap ; then
+		insinto /etc/openldap/schema/
+		newins openssh-lpk_openldap.schema openssh-lpk.schema
+	fi
+
+	doman contrib/ssh-copy-id.1
+	dodoc ChangeLog CREDITS OVERVIEW README* TODO sshd_config
+
+	diropts -m 0700
+	dodir /etc/skel/.ssh
+
+	systemd_dounit "${FILESDIR}"/sshd.{service,socket}
+	systemd_newunit "${FILESDIR}"/sshd_at.service '[email protected]'
+}
+
+src_test() {
+	local t tests skipped failed passed shell
+	tests="interop-tests compat-tests"
+	skipped=""
+	shell=$(egetshell ${UID})
+	if [[ ${shell} == */nologin ]] || [[ ${shell} == */false ]] ; then
+		elog "Running the full OpenSSH testsuite"
+		elog "requires a usable shell for the 'portage'"
+		elog "user, so we will run a subset only."
+		skipped="${skipped} tests"
+	else
+		tests="${tests} tests"
+	fi
+	# It will also attempt to write to the homedir .ssh
+	local sshhome=${T}/homedir
+	mkdir -p "${sshhome}"/.ssh
+	for t in ${tests} ; do
+		# Some tests read from stdin ...
+		HOMEDIR="${sshhome}" \
+		emake -k -j1 ${t} </dev/null \
+			&& passed="${passed}${t} " \
+			|| failed="${failed}${t} "
+	done
+	einfo "Passed tests: ${passed}"
+	ewarn "Skipped tests: ${skipped}"
+	if [[ -n ${failed} ]] ; then
+		ewarn "Failed tests: ${failed}"
+		die "Some tests failed: ${failed}"
+	else
+		einfo "Failed tests: ${failed}"
+		return 0
+	fi
+}
+
+pkg_preinst() {
+	enewgroup sshd 22
+	enewuser sshd 22 -1 /var/empty sshd
+}
+
+pkg_postinst() {
+	if has_version "<${CATEGORY}/${PN}-5.8_p1" ; then
+		elog "Starting with openssh-5.8p1, the server will default to a newer key"
+		elog "algorithm (ECDSA).  You are encouraged to manually update your stored"
+		elog "keys list as servers update theirs.  See ssh-keyscan(1) for more info."
+	fi
+	if has_version "<${CATEGORY}/${PN}-6.9_p1" ; then
+		elog "Starting with openssh-6.9p1, ssh1 support is disabled by default."
+	fi
+	if has_version "<${CATEGORY}/${PN}-7.0_p1" ; then
+		elog "Starting with openssh-6.7, support for USE=tcpd has been dropped by upstream."
+		elog "Make sure to update any configs that you might have.  Note that xinetd might"
+		elog "be an alternative for you as it supports USE=tcpd."
+	fi
+	if has_version "<${CATEGORY}/${PN}-7.1_p1" ; then #557388 #555518
+		elog "Starting with openssh-7.0, support for ssh-dss keys were disabled due to their"
+		elog "weak sizes.  If you rely on these key types, you can re-enable the key types by"
+		elog "adding to your sshd_config or ~/.ssh/config files:"
+		elog "	PubkeyAcceptedKeyTypes=+ssh-dss"
+		elog "You should however generate new keys using rsa or ed25519."
+
+		elog "Starting with openssh-7.0, the default for PermitRootLogin changed from 'yes'"
+		elog "to 'prohibit-password'.  That means password auth for root users no longer works"
+		elog "out of the box.  If you need this, please update your sshd_config explicitly."
+	fi
+	if ! use ssl && has_version "${CATEGORY}/${PN}[ssl]" ; then
+		elog "Be aware that by disabling openssl support in openssh, the server and clients"
+		elog "no longer support dss/rsa/ecdsa keys.  You will need to generate ed25519 keys"
+		elog "and update all clients/servers that utilize them."
+	fi
+}