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-rw-r--r--meta-networking/recipes-support/dnsmasq/files/CVE-2020-25685-2.patch175
1 files changed, 175 insertions, 0 deletions
diff --git a/meta-networking/recipes-support/dnsmasq/files/CVE-2020-25685-2.patch b/meta-networking/recipes-support/dnsmasq/files/CVE-2020-25685-2.patch
new file mode 100644
index 0000000000..302c42ccca
--- /dev/null
+++ b/meta-networking/recipes-support/dnsmasq/files/CVE-2020-25685-2.patch
@@ -0,0 +1,175 @@
+From 2024f9729713fd657d65e64c2e4e471baa0a3e5b Mon Sep 17 00:00:00 2001
+From: =?utf8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
+Date: Wed, 25 Nov 2020 17:18:55 +0100
+Subject: [PATCH] Support hash function from nettle (only)
+
+Unlike COPTS=-DHAVE_DNSSEC, allow usage of just sha256 function from
+nettle, but keep DNSSEC disabled at build time. Skips use of internal
+hash implementation without support for validation built-in.
+
+Signed-off-by: Sana Kazi <Sana.Kazi@kpit.com>
+---
+ Makefile | 8 +++++---
+ bld/pkg-wrapper | 41 ++++++++++++++++++++++-------------------
+ src/config.h | 8 ++++++++
+ src/crypto.c | 7 +++++++
+ src/dnsmasq.h | 2 +-
+ src/hash_questions.c | 2 +-
+ 6 files changed, 44 insertions(+), 24 deletions(-)
+
+CVE: CVE-2020-25685
+Upstream-Status: Backport [https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=patch;h=2024f9729713fd657d65e64c2e4e471baa0a3e5b]
+Comment: Refreshed a hunk from pkg-wrapper and second hunk from Makefile
+
+Index: dnsmasq-2.81/Makefile
+===================================================================
+--- dnsmasq-2.81.orig/Makefile
++++ dnsmasq-2.81/Makefile
+@@ -53,7 +53,7 @@ top?=$(CURDIR)
+
+ dbus_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --cflags dbus-1`
+ dbus_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DBUS $(PKG_CONFIG) --libs dbus-1`
+-ubus_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_UBUS "" --copy -lubox -lubus`
++ubus_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_UBUS "" --copy '-lubox -lubus'`
+ idn_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --cflags libidn`
+ idn_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_IDN $(PKG_CONFIG) --libs libidn`
+ idn2_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LIBIDN2 $(PKG_CONFIG) --cflags libidn2`
+@@ -62,8 +62,10 @@ ct_cflags = `echo $(COPTS) | $(top)/
+ ct_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_CONNTRACK $(PKG_CONFIG) --libs libnetfilter_conntrack`
+ lua_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --cflags lua`
+ lua_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_LUASCRIPT $(PKG_CONFIG) --libs lua`
+-nettle_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --cflags nettle hogweed`
+-nettle_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --libs nettle hogweed`
++nettle_cflags = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --cflags 'nettle hogweed' \
++ HAVE_NETTLEHASH $(PKG_CONFIG) --cflags nettle`
++nettle_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC $(PKG_CONFIG) --libs 'nettle hogweed' \
++ HAVE_NETTLEHASH $(PKG_CONFIG) --libs nettle`
+ gmp_libs = `echo $(COPTS) | $(top)/bld/pkg-wrapper HAVE_DNSSEC NO_GMP --copy -lgmp`
+ sunos_libs = `if uname | grep SunOS >/dev/null 2>&1; then echo -lsocket -lnsl -lposix4; fi`
+ version = -DVERSION='\"`$(top)/bld/get-version $(top)`\"'
+Index: dnsmasq-2.81/bld/pkg-wrapper
+===================================================================
+--- dnsmasq-2.81.orig/bld/pkg-wrapper
++++ dnsmasq-2.81/bld/pkg-wrapper
+@@ -1,35 +1,37 @@
+ #!/bin/sh
+
+-search=$1
+-shift
+-pkg=$1
+-shift
+-op=$1
+-shift
+-
+ in=`cat`
+
+-if grep "^\#[[:space:]]*define[[:space:]]*$search" config.h >/dev/null 2>&1 || \
+- echo $in | grep $search >/dev/null 2>&1; then
++search()
++{
++ grep "^\#[[:space:]]*define[[:space:]]*$1" config.h >/dev/null 2>&1 || \
++ echo $in | grep $1 >/dev/null 2>&1
++}
++
++while [ "$#" -gt 0 ]; do
++ search=$1
++ pkg=$2
++ op=$3
++ lib=$4
++ shift 4
++if search "$search"; then
++
+ # Nasty, nasty, in --copy, arg 2 (if non-empty) is another config to search for, used with NO_GMP
+ if [ $op = "--copy" ]; then
+ if [ -z "$pkg" ]; then
+- pkg="$*"
+- elif grep "^\#[[:space:]]*define[[:space:]]*$pkg" config.h >/dev/null 2>&1 || \
+- echo $in | grep $pkg >/dev/null 2>&1; then
++ pkg="$lib"
++ elif search "$pkg"; then
+ pkg=""
+ else
+- pkg="$*"
++ pkg="$lib"
+ fi
+- elif grep "^\#[[:space:]]*define[[:space:]]*${search}_STATIC" config.h >/dev/null 2>&1 || \
+- echo $in | grep ${search}_STATIC >/dev/null 2>&1; then
+- pkg=`$pkg --static $op $*`
++ elif search "${search}_STATIC"; then
++ pkg=`$pkg --static $op $lib`
+ else
+- pkg=`$pkg $op $*`
++ pkg=`$pkg $op $lib`
+ fi
+
+- if grep "^\#[[:space:]]*define[[:space:]]*${search}_STATIC" config.h >/dev/null 2>&1 || \
+- echo $in | grep ${search}_STATIC >/dev/null 2>&1; then
++ if search "${search}_STATIC"; then
+ if [ $op = "--libs" ] || [ $op = "--copy" ]; then
+ echo "-Wl,-Bstatic $pkg -Wl,-Bdynamic"
+ else
+@@ -40,3 +42,4 @@ if grep "^\#[[:space:]]*define[[:space:]
+ fi
+ fi
+
++done
+Index: dnsmasq-2.81/src/config.h
+===================================================================
+--- dnsmasq-2.81.orig/src/config.h
++++ dnsmasq-2.81/src/config.h
+@@ -118,6 +118,9 @@ HAVE_AUTH
+ define this to include the facility to act as an authoritative DNS
+ server for one or more zones.
+
++HAVE_NETTLEHASH
++ include just hash function from nettle, but no DNSSEC.
++
+ HAVE_DNSSEC
+ include DNSSEC validator.
+
+@@ -185,6 +188,7 @@ RESOLVFILE
+ /* #define HAVE_IDN */
+ /* #define HAVE_LIBIDN2 */
+ /* #define HAVE_CONNTRACK */
++/* #define HAVE_NETTLEHASH */
+ /* #define HAVE_DNSSEC */
+
+
+@@ -418,6 +422,10 @@ static char *compile_opts =
+ "no-"
+ #endif
+ "auth "
++#if !defined(HAVE_NETTLEHASH) && !defined(HAVE_DNSSEC)
++"no-"
++#endif
++"nettlehash "
+ #ifndef HAVE_DNSSEC
+ "no-"
+ #endif
+Index: dnsmasq-2.81/src/dnsmasq.h
+===================================================================
+--- dnsmasq-2.81.orig/src/dnsmasq.h
++++ dnsmasq-2.81/src/dnsmasq.h
+@@ -161,6 +161,9 @@ extern int capget(cap_user_header_t head
+ # include <nettle/nettle-meta.h>
+ #endif
+
++#if defined(HAVE_DNSSEC) || defined(HAVE_NETTLEHASH)
++# include <nettle/nettle-meta.h>
++#endif
+ /* daemon is function in the C library.... */
+ #define daemon dnsmasq_daemon
+
+Index: dnsmasq-2.81/src/hash_questions.c
+===================================================================
+--- dnsmasq-2.81.orig/src/hash_questions.c
++++ dnsmasq-2.81/src/hash_questions.c
+@@ -28,7 +28,7 @@
+
+ #include "dnsmasq.h"
+
+-#ifdef HAVE_DNSSEC
++#if defined(HAVE_DNSSEC) || defined(HAVE_NETTLEHASH)
+ unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name)
+ {
+ int q;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-23 12:47:33 +0000