Vulnerability Monitor

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CVE-2013-5211

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.

Security Impact Summary

CVE-2013-5211 is a security vulnerability that . Impacting 3 products from opensuse, from ntp, from oracle organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2014, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2014-01-02T14:59:03.470

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	opensuse	opensuse	11.4	Yes
Application	ntp	ntp	< 4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Application	ntp	ntp	4.2.7	Yes
Operating System	oracle	linux	6	Yes
Operating System	oracle	linux	7	Yes

References

http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc Third Party Advisory ([email protected])
http://bugs.ntp.org/show_bug.cgi?id=1532 Issue Tracking ([email protected])
http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04 Third Party Advisory, US Government Resource ([email protected])
http://lists.ntp.org/pipermail/pool/2011-December/005616.html Broken Link ([email protected])
http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html Third Party Advisory ([email protected])
http://marc.info/?l=bugtraq&m=138971294629419&w=2 Mailing List ([email protected])
http://marc.info/?l=bugtraq&m=144182594518755&w=2 Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2013/12/30/6 Mailing List ([email protected])
http://openwall.com/lists/oss-security/2013/12/30/7 Mailing List ([email protected])
http://secunia.com/advisories/59288 Not Applicable ([email protected])
http://secunia.com/advisories/59726 Not Applicable ([email protected])
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861 Broken Link ([email protected])
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892 Broken Link ([email protected])
http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gz Patch ([email protected])
http://www.kb.cert.org/vuls/id/348126 Third Party Advisory, US Government Resource ([email protected])
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/64692 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1030433 Third Party Advisory, VDB Entry ([email protected])
http://www.us-cert.gov/ncas/alerts/TA14-013A Third Party Advisory, US Government Resource ([email protected])
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 Third Party Advisory ([email protected])
https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory Broken Link ([email protected])
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://bugs.ntp.org/show_bug.cgi?id=1532 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://lists.ntp.org/pipermail/pool/2011-December/005616.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=138971294629419&w=2 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=144182594518755&w=2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2013/12/30/6 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2013/12/30/7 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59288 Not Applicable (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59726 Not Applicable (af854a3a-2127-422b-91ae-364da2661108)
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gz Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/348126 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/64692 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1030433 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.us-cert.gov/ncas/alerts/TA14-013A Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory Broken Link (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For opensuse's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.