Sergei Lukin: 1 main/busybox: security fixes #6619 2 files changed, 55 insertions(+), 5 deletions(-)
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CVE-2016-6301: NTP server denial of service flaw --- main/busybox/APKBUILD | 20 +++++++++++++++----- main/busybox/CVE-2016-6301.patch | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 5 deletions(-) create mode 100644 main/busybox/CVE-2016-6301.patch diff --git a/main/busybox/APKBUILD b/main/busybox/APKBUILD index cd86eeb..dee1240 100644 --- a/main/busybox/APKBUILD +++ b/main/busybox/APKBUILD @@ -1,8 +1,9 @@ +# Contributor: Sergei Lukin <sergej.lukin@gmail.com> # Contributor: Łukasz Jendrysik <scadu@yandex.com> # Maintainer: Natanael Copa <ncopa@alpinelinux.org> pkgname=busybox pkgver=1.23.2 -pkgrel=0 +pkgrel=1 pkgdesc="Size optimized toolbox of many common UNIX utilities" url=http://busybox.net arch="all" @@ -34,7 +35,13 @@ source="http://busybox.net/downloads/$pkgname-$pkgver.tar.bz2 1002-fbsplash-support-image-and-bar-alignment-and-positio.patch busyboxconfig - glibc.patch" + glibc.patch + CVE-2016-6301.patch + " + +# secfixes: +# 1.24.2-r1: +# - CVE-2016-6301 _sdir="$srcdir"/$pkgname-$pkgver _staticdir="$srcdir"/build-static @@ -129,7 +136,8 @@ e1c183cbe1ca18a0fa0d9597314076c9 0001-ifupdown-use-x-hostname-NAME-with-udhcpc. b56d306ccba574da78dff060b7330806 1001-fbsplash-support-console-switching.patch 4fe5f9e973674c7db3d07f295c363a7c 1002-fbsplash-support-image-and-bar-alignment-and-positio.patch 3cff842a3618c84465d7ef5425c8749b busyboxconfig -befaac2c59c380e36a452b3f1c1d4a3a glibc.patch" +befaac2c59c380e36a452b3f1c1d4a3a glibc.patch +b23dd4bd38216d05d88287371d35513a CVE-2016-6301.patch" sha256sums="05a6f9e21aad8c098e388ae77de7b2361941afa7157ef74216703395b14e319a busybox-1.23.2.tar.bz2 81957f1fe0c386120dad1c8174ccc1fcfeed98c14d229db7d164d4fb4c938b3d bbsuid.c 9bbf0bec82e6d6907474958f3be048c54657fbf49207810b7e4d4d6146f0069d nologin.c @@ -146,7 +154,8 @@ ac2cd5fed91bfaec22ed1f2766396d0feb29b9b96f20b2c12d5d8ac8769afae9 0001-linedit-d b8b0b16ed67b0159256193b1d2108b8ef9aa8a334ab81e463bb970c71257da9a 1001-fbsplash-support-console-switching.patch e1f3fad8e21dfd72cfcae7ab3ba31d7938e964e0f9ec08b2da0b14d462435424 1002-fbsplash-support-image-and-bar-alignment-and-positio.patch 342bb69c144a1e63d7a7fe4c24578ce5b483c09751ac16bb36d1b88929068141 busyboxconfig -c604ef791c31d35a8c5ee4558d21428a46f37a6d762c4a7e29864f4037fc44a0 glibc.patch" +c604ef791c31d35a8c5ee4558d21428a46f37a6d762c4a7e29864f4037fc44a0 glibc.patch +0bffce454b303b832a19946006eebcb217fa6e14a3c638170bd003dc66504e77 CVE-2016-6301.patch" sha512sums="209c8ef26e40ccb81510f6b663202b080f9bbecac7faf386bbabf7e36a43d63b15dd6ce9f7a84c1ccc5345c524999812251da1e113ef9faadc6af1fedd24c7c9 busybox-1.23.2.tar.bz2 16b3dd6a8b76b062d51458351fcb44f84b49eb4bf898584c933df90fb2cb3966f9547865a4d7447589bb20b7c203beb04ff7512f76f85d29138d2cff4eb9ee81 bbsuid.c 4e7c291a70e879b74c0fc07c54a73ef50537d8be68fee6b2d409425c07afd2d67f9b6afcd8c33a7971014913cc5de85e45079681c9e77200c6cc2f34acfba6d2 nologin.c @@ -163,4 +172,5 @@ a35b66cd28b79ccc14b47315ac94677fdf8c14d8a6e8956707e71fb50d453dfc5b4b822832cd1fae a181dd54e8e11cf1199edb1b1fcd4b7402bbf142593b6014f32c6815bb7093b56899ad0fcc9f73c382f56203ac5274fb3d51fa070feb541436f23c31680f1a69 1001-fbsplash-support-console-switching.patch c33073416f7da2805a20f3f456f869217171c8fbfdef85f4ae481307aeb1e1b5717084bbbc619010fa5500c3f3f49b6468d5c122024fcc49d637c82427a3f553 1002-fbsplash-support-image-and-bar-alignment-and-positio.patch 2efb13f23c48a4dc3e2eb6343256694719c3425fe8ddd36ce9fb1837e45fafa3326c2630a08d731abc6bbc104536218d095b2d997861c5b35a7f7907177d2e66 busyboxconfig -1d2739379dab1deb3eae7cffd4845300eb7d30f7343b4a1209b21a5680860d55080ad45fdefe098b249ce3040c01951fa7f0a79cd447b2d7b260eb000099d9dc glibc.patch" +1d2739379dab1deb3eae7cffd4845300eb7d30f7343b4a1209b21a5680860d55080ad45fdefe098b249ce3040c01951fa7f0a79cd447b2d7b260eb000099d9dc glibc.patch +a3030e07a30951b2c4a292670f2ff87541c2a84322525422505f1e3f578021b87c004d0180e5f4219bd1befef2981283b331eb3471de0ae6e4bf44dba8fab502 CVE-2016-6301.patch" diff --git a/main/busybox/CVE-2016-6301.patch b/main/busybox/CVE-2016-6301.patch new file mode 100644 index 0000000..fc736cf --- /dev/null +++ b/main/busybox/CVE-2016-6301.patch @@ -0,0 +1,40 @@ +From 150dc7a2b483b8338a3e185c478b4b23ee884e71 Mon Sep 17 00:00:00 2001 +From: Miroslav Lichvar <mlichvar@redhat.com> +Date: Mon, 1 Aug 2016 20:24:24 +0200 +Subject: ntpd: respond only to client and symmetric active packets + +The busybox NTP implementation doesn't check the NTP mode of packets +received on the server port and responds to any packet with the right +size. This includes responses from another NTP server. An attacker can +send a packet with a spoofed source address in order to create an +infinite loop of responses between two busybox NTP servers. Adding +more packets to the loop increases the traffic between the servers +until one of them has a fully loaded CPU and/or network. + +Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> +Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> +--- + networking/ntpd.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/networking/ntpd.c b/networking/ntpd.c +index 130cef0..8ca62cf 100644 +--- a/networking/ntpd.c ++++ b/networking/ntpd.c +@@ -2051,6 +2051,13 @@ recv_and_process_client_pkt(void /*int fd*/) + goto bail; + } + ++ /* Respond only to client and symmetric active packets */ ++ if ((msg.m_status & MODE_MASK) != MODE_CLIENT ++ && (msg.m_status & MODE_MASK) != MODE_SYM_ACT ++ ) { ++ goto bail; ++ } ++ + query_status = msg.m_status; + query_xmttime = msg.m_xmttime; + +-- +cgit v0.12 + -- 2.4.11 --- Unsubscribe: alpine-aports+unsubscribe@lists.alpinelinux.org Help: alpine-aports+help@lists.alpinelinux.org ---