CVE-2016-2776
Description
buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x before 9.11.0rc3 does not properly construct responses, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted query.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Metasploit modules
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1:9.10.3.dfsg.P4-11 |
| debian | bullseye | fixed | 1:9.10.3.dfsg.P4-11 |
| debian | forky | fixed | 1:9.10.3.dfsg.P4-11 |
| debian | sid | fixed | 1:9.10.3.dfsg.P4-11 |
| debian | trixie | fixed | 1:9.10.3.dfsg.P4-11 |
| arch | fixed | 9.10.4.P3-1 |
References
- https://www.suse.com/security/cve/CVE-2016-2776.html
- https://security.archlinux.org/ASA-201609-29
- http://rhn.redhat.com/errata/RHSA-2016-1944.html
- http://rhn.redhat.com/errata/RHSA-2016-1945.html
- http://rhn.redhat.com/errata/RHSA-2016-2099.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- http://www.securityfocus.com/bid/93188
- http://www.securitytracker.com/id/1036903
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05321107
- https://kb.isc.org/article/AA-01419/0
- https://kb.isc.org/article/AA-01435
- https://kb.isc.org/article/AA-01436
- https://kb.isc.org/article/AA-01438
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:28.bind.asc
- https://security.gentoo.org/glsa/201610-07
- https://security.netapp.com/advisory/ntap-20160930-0001/
- https://www.exploit-db.com/exploits/40453/
- https://security-tracker.debian.org/tracker/CVE-2016-2776
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.