cbcvebase.
CVE-2016-9131
published 2017-01-12

CVE-2016-9131: named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion…

PriorityP350high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
40.56%
98.5th percentile
named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed response to an RTYPE ANY query.

Affected

31 ranges· showing 25
VendorProductVersion rangeFixed in
debianbind9< bind9 1:9.10.3.dfsg.P4-11 (bookworm)bind9 1:9.10.3.dfsg.P4-11 (bookworm)
debiandebian_linux
iscbind
iscbind
iscbind
iscbind9.0 – 9.9.8
iscbind9.10.0 – 9.10.3
iscbind9>= 0 < 1:9.10.3.dfsg.P4-111:9.10.3.dfsg.P4-11
iscbind9>= 0 < 1:9.10.3.dfsg.P4-111:9.10.3.dfsg.P4-11
iscbind9>= 0 < 1:9.10.3.dfsg.P4-111:9.10.3.dfsg.P4-11
iscbind9>= 0 < 1:9.10.3.dfsg.P4-111:9.10.3.dfsg.P4-11
iscbind9>= 0 < 1:9.9.5.dfsg-3ubuntu0.111:9.9.5.dfsg-3ubuntu0.11
iscbind9>= 0 < 1:9.10.3.dfsg.P4-8ubuntu1.41:9.10.3.dfsg.P4-8ubuntu1.4
redhatenterprise_linux_desktop
redhatenterprise_linux_eus
redhatenterprise_linux_eus
redhatenterprise_linux_eus
redhatenterprise_linux_eus
redhatenterprise_linux_eus
redhatenterprise_linux_eus
redhatenterprise_linux_server
redhatenterprise_linux_server_aus
redhatenterprise_linux_server_aus
redhatenterprise_linux_server_aus
redhatenterprise_linux_server_aus

Detection & IOCsextracted from sources · hover to see the quote

otherTKEY (record type 249) in DNS ANY query response
otherTKEY record rdclass 0xff in DNS ANY query response
  • Detect DNS ANY query responses containing a TKEY record (type 249) with rdclass 0xff — this mismatch triggers the assertion failure in BIND's Resolver.c cache_name() / dns_db_addrdataset()
  • Target: BIND recursive servers only — the malformed TKEY response must be received by a recursive server that issued an ANY query; authoritative-only servers are not directly at risk
  • No authentication is required to exploit this vulnerability — any remote attacker who can influence DNS responses seen by the recursive resolver can trigger the crash
  • Use Fortinet IPS signature ISC.BIND.TKEY.Query.Reponse.Handling.DoS for network-level detection of exploit attempts
  • ·Affected versions: ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.