From: Mark Andrews Date: Wed, 29 Jul 2020 23:36:03 +1000 Subject: [1/3] Update-policy 'subdomain' was incorrectly treated as 'zonesub' Origin: https://gitlab.isc.org/isc-projects/bind9/commit/e4cccf9668c7adee4724a7649ec64685f82c8677 Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2020-8624 resulting in names outside the specified subdomain having the wrong restrictions for the given key. --- bin/named/zoneconf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/bin/named/zoneconf.c b/bin/named/zoneconf.c index e237bdb..4898447 100644 --- a/bin/named/zoneconf.c +++ b/bin/named/zoneconf.c @@ -237,7 +237,8 @@ configure_zone_ssutable(const cfg_obj_t *zconfig, dns_zone_t *zone, str = cfg_obj_asstring(matchtype); CHECK(dns_ssu_mtypefromstring(str, &mtype)); - if (mtype == dns_ssumatchtype_subdomain) { + if (mtype == dns_ssumatchtype_subdomain && + strcasecmp(str, "zonesub") == 0) { usezone = true; }