diff options
Diffstat (limited to 'meta/recipes-core/busybox/busybox/CVE-2016-6301.patch')
| -rw-r--r-- | meta/recipes-core/busybox/busybox/CVE-2016-6301.patch | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/meta/recipes-core/busybox/busybox/CVE-2016-6301.patch b/meta/recipes-core/busybox/busybox/CVE-2016-6301.patch deleted file mode 100644 index 851bc20f79..0000000000 --- a/meta/recipes-core/busybox/busybox/CVE-2016-6301.patch +++ /dev/null @@ -1,37 +0,0 @@ -busybox1.24.1: Fix CVE-2016-6301 - -[No upstream tracking] -- https://bugzilla.redhat.com/show_bug.cgi?id=1363710 - -ntpd: NTP server denial of service flaw - -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. - -Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=150dc7a2b483b8338a3e185c478b4b23ee884e71] -CVE: CVE-2016-6301 -Signed-off-by: Andrej Valek <andrej.valek@siemens.com> -Signed-off-by: Pascal Bach <pascal.bach@siemens.com> - -diff --git a/networking/ntpd.c b/networking/ntpd.c -index 9732c9b..0f6a55f 100644 ---- a/networking/ntpd.c -+++ b/networking/ntpd.c -@@ -1985,6 +1985,13 @@ 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; - |