CVE-2013-5211

Name: CVE-2013-5211
Creator: NVD / NIST
Published: 2014-01-02T14:59:03.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 97.55%

Last modified Jun 16, 2026

CVE-2013-5211 is a vulnerability of currently unknown severity. The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.. EPSS estimates a 97.55% chance of exploitation in the next 30 days.

Description

The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.

Metrics

EPSS Probability

97.55%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Opensuse	Opensuse	11.4
Ntp	Ntp	< 4.2.7
Ntp	Ntp	4.2.7
Oracle	Linux	6
Oracle	Linux	7

References

http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.ascThird Party Advisory
http://bugs.ntp.org/show_bug.cgi?id=1532Issue Tracking
http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04Third Party Advisory, US Government Resource
http://lists.ntp.org/pipermail/pool/2011-December/005616.htmlBroken Link
http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.htmlThird Party Advisory
http://marc.info/?l=bugtraq&m=138971294629419&w=2Mailing List
http://marc.info/?l=bugtraq&m=144182594518755&w=2Mailing List, Third Party Advisory
http://openwall.com/lists/oss-security/2013/12/30/6Mailing List
http://openwall.com/lists/oss-security/2013/12/30/7Mailing List
http://secunia.com/advisories/59288Not Applicable
http://secunia.com/advisories/59726Not Applicable
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861Broken Link
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892Broken Link
http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gzPatch
http://www.kb.cert.org/vuls/id/348126Third Party Advisory, US Government Resource
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
http://www.securityfocus.com/bid/64692Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1030433Third Party Advisory, VDB Entry
http://www.us-cert.gov/ncas/alerts/TA14-013AThird Party Advisory, US Government Resource
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232Third Party Advisory
https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisoryBroken Link
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.ascThird Party Advisory
http://bugs.ntp.org/show_bug.cgi?id=1532Issue Tracking
http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04Third Party Advisory, US Government Resource
http://lists.ntp.org/pipermail/pool/2011-December/005616.htmlBroken Link
http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.htmlThird Party Advisory
http://marc.info/?l=bugtraq&m=138971294629419&w=2Mailing List
http://marc.info/?l=bugtraq&m=144182594518755&w=2Mailing List, Third Party Advisory
http://openwall.com/lists/oss-security/2013/12/30/6Mailing List
http://openwall.com/lists/oss-security/2013/12/30/7Mailing List
http://secunia.com/advisories/59288Not Applicable
http://secunia.com/advisories/59726Not Applicable
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861Broken Link
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892Broken Link
http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gzPatch
http://www.kb.cert.org/vuls/id/348126Third Party Advisory, US Government Resource
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
http://www.securityfocus.com/bid/64692Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1030433Third Party Advisory, VDB Entry
http://www.us-cert.gov/ncas/alerts/TA14-013AThird Party Advisory, US Government Resource
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232Third Party Advisory
https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisoryBroken Link

Timeline

Published: Jan 2, 2014
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5211?

How severe is CVE-2013-5211?

Severity scoring for CVE-2013-5211 is pending analysis. The EPSS model estimates a 97.55% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5211?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-5211?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST