Vulnerability Report

CVE-2016-2776

Title: Isc Bind Denial of Service (DoS)

DoS

Proof Of Concept

PoC Available for CVE-2016-2776

CWE Category CWE-20
Published Date Sep 28, 2016
Modified Date May 06, 2026
Exploit Status Available
Score 7.5 CVSS v3.0
Exploit Probability (EPSS)
89.48%

Vulnerability Summary

CVE-2016-2776: 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.

Impacted Vendors

I
isc 1

Reference Links

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/ 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/
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-2776 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/infobyte/CVE-2016-2776
View Code
Exploit-DB https://www.exploit-db.com/exploits/40453
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.