diff options
Diffstat (limited to 'contrib/unbound/iterator/iter_scrub.c')
| -rw-r--r-- | contrib/unbound/iterator/iter_scrub.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/contrib/unbound/iterator/iter_scrub.c b/contrib/unbound/iterator/iter_scrub.c index 49a5f5da19c2..553d3655f0e3 100644 --- a/contrib/unbound/iterator/iter_scrub.c +++ b/contrib/unbound/iterator/iter_scrub.c @@ -634,6 +634,22 @@ scrub_normalize(sldns_buffer* pkt, struct msg_parse* msg, "RRset:", pkt, msg, prev, &rrset); continue; } + /* If the NS set is a promiscuous NS set, scrub that + * to remove potential for poisonous contents that + * affects other names in the same zone. Remove + * promiscuous NS sets in positive answers, that + * thus have records in the answer section. Nodata + * and nxdomain promiscuous NS sets have been removed + * already. Since the NS rrset is scrubbed, its + * address records are also not marked to be allowed + * and are removed later. */ + if(FLAGS_GET_RCODE(msg->flags) == LDNS_RCODE_NOERROR && + msg->an_rrsets != 0 && + env->cfg->iter_scrub_promiscuous) { + remove_rrset("normalize: removing promiscuous " + "RRset:", pkt, msg, prev, &rrset); + continue; + } if(nsset == NULL) { nsset = rrset; } else { |