From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:470:142:3::10]:49586) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iu1SM-0001wA-4c for guix-patches@gnu.org; Tue, 21 Jan 2020 16:53:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iu1SI-0005LL-JH for guix-patches@gnu.org; Tue, 21 Jan 2020 16:53:06 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:42650) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iu1SI-0005LH-FS for guix-patches@gnu.org; Tue, 21 Jan 2020 16:53:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iu1SI-0003X7-Et for guix-patches@gnu.org; Tue, 21 Jan 2020 16:53:02 -0500 Subject: [bug#39228] [Patch v2] gnu: Add libvnc. Resent-Message-ID: From: Hartmut Goebel Date: Tue, 21 Jan 2020 22:52:21 +0100 Message-Id: <20200121215221.21532-1-h.goebel@crazy-compilers.com> In-Reply-To: <20200121211056.7192-1-h.goebel@crazy-compilers.com> References: <20200121211056.7192-1-h.goebel@crazy-compilers.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+kyle=kyleam.com@gnu.org Sender: "Guix-patches" To: 39228@debbugs.gnu.org * gnu/packages/libvnc.scm, gnu/packages/patches/libvnc-CVE-2018-20750.patch, gnu/packages/patches/libvnc-CVE-2019-15681.patch: New files. * gnu/lokal.mk: Add them. --- gnu/local.mk | 3 + gnu/packages/libvnc.scm | 65 +++++++++++++++++++ .../patches/libvnc-CVE-2018-20750.patch | 44 +++++++++++++ .../patches/libvnc-CVE-2019-15681.patch | 23 +++++++ 4 files changed, 135 insertions(+) create mode 100644 gnu/packages/libvnc.scm create mode 100644 gnu/packages/patches/libvnc-CVE-2018-20750.patch create mode 100644 gnu/packages/patches/libvnc-CVE-2019-15681.patch diff --git a/gnu/local.mk b/gnu/local.mk index 286bcb67dd..f1107bf728 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -311,6 +311,7 @@ GNU_SYSTEM_MODULES = \ %D%/packages/libunistring.scm \ %D%/packages/libusb.scm \ %D%/packages/libunwind.scm \ + %D%/packages/libvnc.scm \ %D%/packages/lighting.scm \ %D%/packages/linux.scm \ %D%/packages/lirc.scm \ @@ -1122,6 +1123,8 @@ dist_patch_DATA = \ %D%/packages/patches/libutils-add-includes.patch \ %D%/packages/patches/libutils-remove-damaging-includes.patch \ %D%/packages/patches/libvdpau-va-gl-unbundle.patch \ + %D%/packages/patches/libvnc-CVE-2018-20750.patch \ + %D%/packages/patches/libvnc-CVE-2019-15681.patch \ %D%/packages/patches/libvpx-CVE-2016-2818.patch \ %D%/packages/patches/libvpx-use-after-free-in-postproc.patch \ %D%/packages/patches/libxslt-generated-ids.patch \ diff --git a/gnu/packages/libvnc.scm b/gnu/packages/libvnc.scm new file mode 100644 index 0000000000..091d331ce9 --- /dev/null +++ b/gnu/packages/libvnc.scm @@ -0,0 +1,65 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2017, 2020 Hartmut Goebel +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see . + +(define-module (gnu packages libvnc) + #:use-module (guix build-system cmake) + #:use-module (guix git-download) + #:use-module ((guix licenses) #:prefix license:) + #:use-module (guix packages) + #:use-module (guix utils) + #:use-module (gnu packages) + #:use-module (gnu packages compression) + #:use-module (gnu packages gnupg) + #:use-module (gnu packages image) + #:use-module (gnu packages pkg-config) + #:use-module (gnu packages sdl) + #:use-module (gnu packages tls)) + +(define-public libvnc + (package + (name "libvnc") + (version "0.9.12") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/LibVNC/libvncserver.git") + (commit (string-append "LibVNCServer-" version)))) + (file-name (git-file-name name version)) + (sha256 + (base32 "1226hb179l914919f5nm2mlf8rhaarqbf48aa649p4rwmghyx9vm")) + (patches (search-patches "libvnc-CVE-2018-20750.patch" + "libvnc-CVE-2019-15681.patch")))) + (build-system cmake-build-system) + (native-inputs + `(("pkg-config" ,pkg-config))) + (inputs + `(("gnutls" ,gnutls) + ("libgcrypt" ,libgcrypt) + ("libjpeg" ,libjpeg) + ("libpng" ,libpng) + ("lzo" ,lzo) + ("sdl2" ,sdl2))) + (home-page "https://libvnc.github.io/") + (synopsis "Cross-platform C libraries for implementing VNC server or +client") + (description "This package provides @code{LibVNCServer} and +@code{LibVNCClient}. These are cross-platform C libraries that allow you to +easily implement VNC server or client functionality in your program.") + (license ;; GPL for programs, FDL for documentation + (list license:gpl2+ license:fdl1.2+)))) diff --git a/gnu/packages/patches/libvnc-CVE-2018-20750.patch b/gnu/packages/patches/libvnc-CVE-2018-20750.patch new file mode 100644 index 0000000000..146243670a --- /dev/null +++ b/gnu/packages/patches/libvnc-CVE-2018-20750.patch @@ -0,0 +1,44 @@ +From 09e8fc02f59f16e2583b34fe1a270c238bd9ffec Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= +Date: Mon, 7 Jan 2019 10:40:01 +0100 +Subject: [PATCH] Limit lenght to INT_MAX bytes in + rfbProcessFileTransferReadBuffer() + +This ammends 15bb719c03cc70f14c36a843dcb16ed69b405707 fix for a heap +out-of-bound write access in rfbProcessFileTransferReadBuffer() when +reading a transfered file content in a server. The former fix did not +work on platforms with a 32-bit int type (expected by rfbReadExact()). + +CVE-2018-15127 + + +--- + libvncserver/rfbserver.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +diff --git a/libvncserver/rfbserver.c b/libvncserver/rfbserver.c +index 7af84906..f2edbeea 100644 +--- a/libvncserver/rfbserver.c ++++ b/libvncserver/rfbserver.c +@@ -88,6 +88,8 @@ + #include + /* strftime() */ + #include ++/* INT_MAX */ ++#include + + #ifdef LIBVNCSERVER_WITH_WEBSOCKETS + #include "rfbssl.h" +@@ -1472,8 +1474,11 @@ char *rfbProcessFileTransferReadBuffer(rfbClientPtr cl, uint32_t length) + 0XFFFFFFFF, i.e. SIZE_MAX for 32-bit systems. On 64-bit systems, a length of 0XFFFFFFFF + will safely be allocated since this check will never trigger and malloc() can digest length+1 + without problems as length is a uint32_t. ++ We also later pass length to rfbReadExact() that expects a signed int type and ++ that might wrap on platforms with a 32-bit int type if length is bigger ++ than 0X7FFFFFFF. + */ +- if(length == SIZE_MAX) { ++ if(length == SIZE_MAX || length > INT_MAX) { + rfbErr("rfbProcessFileTransferReadBuffer: too big file transfer length requested: %u", (unsigned int)length); + rfbCloseClient(cl); + return NULL; diff --git a/gnu/packages/patches/libvnc-CVE-2019-15681.patch b/gnu/packages/patches/libvnc-CVE-2019-15681.patch new file mode 100644 index 0000000000..e328d87920 --- /dev/null +++ b/gnu/packages/patches/libvnc-CVE-2019-15681.patch @@ -0,0 +1,23 @@ +From d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a Mon Sep 17 00:00:00 2001 +From: Christian Beier +Date: Mon, 19 Aug 2019 22:32:25 +0200 +Subject: [PATCH] rfbserver: don't leak stack memory to the remote + +Thanks go to Pavel Cheremushkin of Kaspersky for reporting. +--- + libvncserver/rfbserver.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/libvncserver/rfbserver.c b/libvncserver/rfbserver.c +index 3bacc891..310e5487 100644 +--- a/libvncserver/rfbserver.c ++++ b/libvncserver/rfbserver.c +@@ -3724,6 +3724,8 @@ rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len) + rfbServerCutTextMsg sct; + rfbClientIteratorPtr iterator; + ++ memset((char *)&sct, 0, sizeof(sct)); ++ + iterator = rfbGetClientIterator(rfbScreen); + while ((cl = rfbClientIteratorNext(iterator)) != NULL) { + sct.type = rfbServerCutText; -- 2.21.1