Skip to main content
View

Vulnerability Assessment

Impact

CVSS score of 7.8 (HIGH). Attack characteristics: network attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 51.15%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.
No patch listed yet 51.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The RFC 5011 implementation in rdata.c in ISC BIND 9.7.x and 9.8.x before 9.8.5-P2, 9.8.6b1, 9.9.x before 9.9.3-P2, and 9.9.4b1, and DNSco BIND 9.9.3-S1 before 9.9.3-S1-P1 and 9.9.4-S1b1, allows. Rated high severity (CVSS 7.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 51.1%.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The RFC 5011 implementation in rdata.c in ISC BIND 9.7.x and 9.8.x before 9.8.5-P2, 9.8.6b1, 9.9.x before 9.9.3-P2, and 9.9.4b1, and DNSco BIND 9.9.3-S1 before 9.9.3-S1-P1 and 9.9.4-S1b1, allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query with a malformed RDATA section that is not properly handled during construction of a log message, as exploited in the wild in July 2013. Affected products include: Isc Bind, Suse Suse Linux Enterprise Software Development Kit, Novell Suse Linux, Isc Dnsco Bind, Opensuse. Version information: before 9.8.5.

Know when Bind gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.8 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
C

DescriptionCVE.org

The RFC 5011 implementation in rdata.c in ISC BIND 9.7.x and 9.8.x before 9.8.5-P2, 9.8.6b1, 9.9.x before 9.9.3-P2, and 9.9.4b1, and DNSco BIND 9.9.3-S1 before 9.9.3-S1-P1 and 9.9.4-S1b1, allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query with a malformed RDATA section that is not properly handled during construction of a log message, as exploited in the wild in July 2013.

Threat Intelligence Overview

Threat Score
4.6/10
Composite threat intelligence
EPSS Score
51.1%
Top 2% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 51.1%
Patch available No
Active threat Yes
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

110
Low Medium High Critical
KEV: 0
EPSS: +51
CVSS: +39
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:isc:bind:9.7.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.0:b1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.0:p1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.0:p2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.0:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.0:rc2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.1:p1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.1:p2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.1:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.2:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.2:p1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.2:p2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.2:p3:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.2:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.3:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.3:b1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.3:p1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.3:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.7.4:*:*:*:*:*:*:*
+ 88 more

More in Bind

View all
CVE-2015-5477 HIGH POC
7.5 Jul 29

Remote unauthenticated attackers can cause a denial-of-service condition in ISC BIND 9.x by sending a crafted TKEY query

CVE-2016-2776 HIGH POC
7.5 Sep 28

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

CVE-2016-9131 HIGH
7.5 Jan 12

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 c

CVE-2015-5722 HIGH
7.8 Sep 05

buffer.c in named in ISC BIND 9.x before 9.9.7-P3 and 9.10.x before 9.10.2-P4 allows remote attackers to cause a denial

CVE-2016-1285 MEDIUM
6.8 Mar 09

named in ISC BIND 9.x before 9.9.8-P4 and 9.10.x before 9.10.3-P4 does not properly handle DNAME records when parsing fe

CVE-2012-4244 HIGH
7.8 Sep 14

ISC BIND 9.x before 9.7.6-P3, 9.8.x before 9.8.3-P3, 9.9.x before 9.9.1-P3, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P3

CVE-2016-1286 HIGH
8.6 Mar 09

named in ISC BIND 9.x before 9.9.8-P4 and 9.10.x before 9.10.3-P4 allows remote attackers to cause a denial of service (

CVE-2012-1667 HIGH
8.5 Jun 05

ISC BIND 9.x before 9.7.6-P1, 9.8.x before 9.8.3-P1, 9.9.x before 9.9.1-P1, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P1

CVE-2016-9147 HIGH
7.5 Jan 12

named in ISC BIND 9.9.9-P4, 9.9.9-S6, 9.10.4-P4, and 9.11.0-P1 allows remote attackers to cause a denial of service (ass

CVE-2015-8000 MEDIUM
5.0 Dec 16

db.c in named in ISC BIND 9.x before 9.9.8-P2 and 9.10.x before 9.10.3-P2 allows remote attackers to cause a denial of s

CVE-2016-2848 HIGH
7.5 Oct 21

ISC BIND 9.1.0 through 9.8.4-P2 and 9.9.0 through 9.9.2-P2 allows remote attackers to cause a denial of service (asserti

CVE-2016-9444 HIGH
7.5 Jan 12

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 c

References

Advisories & patches
ADVISORY http://lists.fedoraproject.org/pipermail/package-announce/2013-August/113108.html ADVISORY http://lists.fedoraproject.org/pipermail/package-announce/2013-August/113251.html ADVISORY http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00004.html ADVISORY http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00018.html ADVISORY http://rhn.redhat.com/errata/RHSA-2013-1114.html ADVISORY http://rhn.redhat.com/errata/RHSA-2013-1115.html ADVISORY http://secunia.com/advisories/54134 ADVISORY http://secunia.com/advisories/54185 ADVISORY http://secunia.com/advisories/54207 ADVISORY http://secunia.com/advisories/54211 ADVISORY http://secunia.com/advisories/54323 ADVISORY http://secunia.com/advisories/54432 ADVISORY http://www.freebsd.org/security/advisories/FreeBSD-SA-13:07.bind.asc ADVISORY http://www.mandriva.com/security/advisories?name=MDVSA-2013:202 ADVISORY https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03922396 ADVISORY https://kb.isc.org/article/AA-01015 ADVISORY https://kb.isc.org/article/AA-01016 REF http://archives.neohapsis.com/archives/bugtraq/2013-08/0030.html REF http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html REF http://linux.oracle.com/errata/ELSA-2014-1244 REF http://www.debian.org/security/2013/dsa-2728 REF http://www.securityfocus.com/bid/61479 REF http://www.securitytracker.com/id/1028838 REF http://www.ubuntu.com/usn/USN-1910-1 REF http://www.zerodayinitiative.com/advisories/ZDI-13-210/ REF https://exchange.xforce.ibmcloud.com/vulnerabilities/86004 REF https://kc.mcafee.com/corporate/index?page=content&id=SB10052 REF https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19561 REF https://support.apple.com/kb/HT6536

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy