CVE-2009-3563
ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2)
02 Description
ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2)
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 32.05% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.1% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2009-12-09 00:00Z16 YR AGO
- Last updated
- 2024-08-07 06:31Z2 YR AGO
- Reserved
- 2009-10-05
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- b69f989125c5380759c2bfaca0cd9e3fedaf3272d549cc3ca5f4c444a76ed79d
05 Affected products
06 References
- www.kb.cert.orgVU#568372http://www.kb.cert.org/vuls/id/568372
- secunia.com38832http://secunia.com/advisories/38832
- kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673
- oval.cisecurity.orgoval:org.mitre.oval:def:11225https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11225
- support.avaya.comhttp://support.avaya.com/css/P8/documents/100071808
- secunia.com38794http://secunia.com/advisories/38794
- lists.vmware.com[security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updateshttp://lists.vmware.com/pipermail/security-announce/2010/000082.html
- www.redhat.comFEDORA-2009-13121https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00809.html
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=531213
- secunia.com38764http://secunia.com/advisories/38764
- support.ntp.orghttp://support.ntp.org/bin/view/Main/SecurityNotice#DoS_attack_from_certain_NTP_mode
- www.kb.cert.orghttp://www.kb.cert.org/vuls/id/MAPG-7X7V6J
- oval.cisecurity.orgoval:org.mitre.oval:def:19376https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19376
- www.securityfocus.com37255http://www.securityfocus.com/bid/37255
- marc.infoSSRT101144http://marc.info/?l=bugtraq&m=136482797910018&w=2
- secunia.com39593http://secunia.com/advisories/39593
- www-01.ibm.comIZ71047http://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047
- www.vupen.comADV-2010-0993http://www.vupen.com/english/advisories/2010/0993
- www.debian.orgDSA-1948http://www.debian.org/security/2009/dsa-1948
- bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560074
- aix.software.ibm.comhttp://aix.software.ibm.com/aix/efixes/security/xntpd_advisory.asc
- marc.infoHPSBUX02639http://marc.info/?l=bugtraq&m=130168580504508&w=2
- sunsolve.sun.com1021781http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1
- www-01.ibm.comIZ68659http://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659
- support.ntp.orghttps://support.ntp.org/bugs/show_bug.cgi?id=1331
- oval.cisecurity.orgoval:org.mitre.oval:def:7076https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7076
- secunia.com37922http://secunia.com/advisories/37922
- ftp.netbsd.orgNetBSD-SA2010-005ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-005.txt.asc
- secunia.com38834http://secunia.com/advisories/38834
- www.redhat.comFEDORA-2009-13090https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00763.html
- security-tracker.debian.orghttp://security-tracker.debian.org/tracker/CVE-2009-3563
- securitytracker.com1023298http://securitytracker.com/id?1023298
- oval.cisecurity.orgoval:org.mitre.oval:def:12141https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12141
- rhn.redhat.comRHSA-2009:1651https://rhn.redhat.com/errata/RHSA-2009-1651.html
- secunia.com37629http://secunia.com/advisories/37629
- rhn.redhat.comRHSA-2010:0095https://rhn.redhat.com/errata/RHSA-2010-0095.html
- kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10691
- lists.ntp.org[announce] 20091208 NTP 4.2.4p8 Releasedhttps://lists.ntp.org/pipermail/announce/2009-December/000086.html
- www.vupen.comADV-2010-0510http://www.vupen.com/english/advisories/2010/0510
- rhn.redhat.comRHSA-2009:1648https://rhn.redhat.com/errata/RHSA-2009-1648.html
- www.kb.cert.orghttp://www.kb.cert.org/vuls/id/MAPG-7X7VD7
- www.vupen.comADV-2010-0528http://www.vupen.com/english/advisories/2010/0528
- www.kb.cert.orgVU#417980https://www.kb.cert.org/vuls/id/417980
07 Fixed in
Debian 11
- ntp Fixed in 1:4.2.4p8+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.