KEV Intelligence

Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2013-4854

BIND Denial of Service

ISC / BIND

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Severity
CVSS 7.8 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
34.2%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2013-4854 is an unauthenticated vulnerability affecting ISC BIND. 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...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

ISC / BIND.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

BIND Denial of Service

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.

View vendor advisory (opens in new tab)
Published
26 Jul 2013
Exploitation Reported
26 Jul 2013
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
—

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2013-4854
  • FEDORA-2013-13863 lists.fedoraproject.org · Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2013-August...
  • HPSBUX02926 h20564.www2.hp.com · Vendor Advisory https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docI...
  • APPLE-SA-2014-10-16-3 archives.neohapsis.com · Vendor Advisory http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
  • MDVSA-2013:202 mandriva.com · Vendor Advisory http://www.mandriva.com/security/advisories?name=MDVSA-2013:202
  • FreeBSD-SA-13:07 freebsd.org · Vendor Advisory http://www.freebsd.org/security/advisories/FreeBSD-SA-13:07.bind.asc
  • FEDORA-2013-13831 lists.fedoraproject.org · Vendor Advisory http://lists.fedoraproject.org/pipermail/package-announce/2013-August...
  • openSUSE-SU-2013:1354 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00018...
  • RHSA-2013:1114 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2013-1114.html
  • SUSE-SU-2013:1310 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00004...
  • USN-1910-1 ubuntu.com · Vendor Advisory http://www.ubuntu.com/usn/USN-1910-1
  • DSA-2728 debian.org · Vendor Advisory http://www.debian.org/security/2013/dsa-2728
  • RHSA-2013:1115 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2013-1115.html
  • 54134 secunia.com · Third-Party Advisory http://secunia.com/advisories/54134
  • 54185 secunia.com · Third-Party Advisory http://secunia.com/advisories/54185
  • 54207 secunia.com · Third-Party Advisory http://secunia.com/advisories/54207
  • 54323 secunia.com · Third-Party Advisory http://secunia.com/advisories/54323
  • 54211 secunia.com · Third-Party Advisory http://secunia.com/advisories/54211
  • 54432 secunia.com · Third-Party Advisory http://secunia.com/advisories/54432
  • oval:org.mitre.oval:def:19561 oval.cisecurity.org · VDB Entry https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.m...
  • isc-bind-cve20134854-dos(86004) exchange.xforce.ibmcloud.com · VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/86004
  • 61479 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/61479
  • 1028838 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1028838
  • 20130806 [slackware-security] bind (SSA:2013-218-01) archives.neohapsis.com · Mailing List http://archives.neohapsis.com/archives/bugtraq/2013-08/0030.html
  • kb.isc.org/article/AA-01015 kb.isc.org · CVE Record https://kb.isc.org/article/AA-01015
  • linux.oracle.com/errata/ELSA-2014-1244 linux.oracle.com · CVE Record http://linux.oracle.com/errata/ELSA-2014-1244
  • kb.isc.org/article/AA-01016 kb.isc.org · CVE Record https://kb.isc.org/article/AA-01016
  • kc.mcafee.com/corporate/index kc.mcafee.com · CVE Record https://kc.mcafee.com/corporate/index?page=content&id=SB10052
  • support.apple.com/kb/HT6536 support.apple.com · CVE Record https://support.apple.com/kb/HT6536
  • zerodayinitiative.com/advisories/ZDI-13-210 zerodayinitiative.com · CVE Record http://www.zerodayinitiative.com/advisories/ZDI-13-210/

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 26 Jul 2013

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source Added
CVE First 2013-07-26 23:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v2.0

7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

34.2%

Timeline

From disclosure to observed exploitation

  1. Added to KEV Intelligence KEV Feed

    High-confidence, third-party attested exploitation

  2. CVE published

    Vulnerability disclosed publicly

  3. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2013-4854

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2013-4854",
  "confidence": "High",
  "cvss_score": 7.8,
  "cvss_estimated": false,
  "epss_score": 0.3415,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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