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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 97.5%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 97.55% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 28 April 2014
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- opensuse/opensuse · ntp/ntp · oracle/linux
- Source
- cve@mitre.org
EPSS 97.5% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.