diff options
Diffstat (limited to 'meta/recipes-connectivity/bind/bind/0001-fix-enforcement-of-tcp-clients-v1.patch')
| -rw-r--r-- | meta/recipes-connectivity/bind/bind/0001-fix-enforcement-of-tcp-clients-v1.patch | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/meta/recipes-connectivity/bind/bind/0001-fix-enforcement-of-tcp-clients-v1.patch b/meta/recipes-connectivity/bind/bind/0001-fix-enforcement-of-tcp-clients-v1.patch deleted file mode 100644 index 48ae125f84..0000000000 --- a/meta/recipes-connectivity/bind/bind/0001-fix-enforcement-of-tcp-clients-v1.patch +++ /dev/null @@ -1,60 +0,0 @@ -Backport patch to fix CVE-2018-5743. - -Ref: -https://security-tracker.debian.org/tracker/CVE-2018-5743 - -CVE: CVE-2018-5743 -Upstream-Status: Backport [https://gitlab.isc.org/isc-projects/bind9/commit/ec2d50d] - -Signed-off-by: Kai Kang <kai.kang@windriver.com> - -From ec2d50da8d81814640e28593d912f4b96c7efece Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Witold=20Kr=C4=99cicki?= <wpk@isc.org> -Date: Thu, 3 Jan 2019 14:17:43 +0100 -Subject: [PATCH 1/6] fix enforcement of tcp-clients (v1) - -tcp-clients settings could be exceeded in some cases by -creating more and more active TCP clients that are over -the set quota limit, which in the end could lead to a -DoS attack by e.g. exhaustion of file descriptors. - -If TCP client we're closing went over the quota (so it's -not attached to a quota) mark it as mortal - so that it -will be destroyed and not set up to listen for new -connections - unless it's the last client for a specific -interface. - -(cherry picked from commit f97131d21b97381cef72b971b157345c1f9b4115) -(cherry picked from commit 9689ffc485df8f971f0ad81ab8ab1f5389493776) ---- - bin/named/client.c | 13 ++++++++++++- - 1 file changed, 12 insertions(+), 1 deletion(-) - -diff --git a/bin/named/client.c b/bin/named/client.c -index d482da7121..0739dd48af 100644 ---- a/bin/named/client.c -+++ b/bin/named/client.c -@@ -421,8 +421,19 @@ exit_check(ns_client_t *client) { - isc_socket_detach(&client->tcpsocket); - } - -- if (client->tcpquota != NULL) -+ if (client->tcpquota != NULL) { - isc_quota_detach(&client->tcpquota); -+ } else { -+ /* -+ * We went over quota with this client, we don't -+ * want to restart listening unless this is the -+ * last client on this interface, which is -+ * checked later. -+ */ -+ if (TCP_CLIENT(client)) { -+ client->mortal = true; -+ } -+ } - - if (client->timerset) { - (void)isc_timer_reset(client->timer, --- -2.20.1 - |