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) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ntp | Ntp | * | 4.2.2p4 (including) |
| Ntp | Ntp | 4.0.72 (including) | 4.0.72 (including) |
| Ntp | Ntp | 4.0.73 (including) | 4.0.73 (including) |
| Ntp | Ntp | 4.0.90 (including) | 4.0.90 (including) |
| Ntp | Ntp | 4.0.91 (including) | 4.0.91 (including) |
| Ntp | Ntp | 4.0.92 (including) | 4.0.92 (including) |
| Ntp | Ntp | 4.0.93 (including) | 4.0.93 (including) |
| Ntp | Ntp | 4.0.94 (including) | 4.0.94 (including) |
| Ntp | Ntp | 4.0.95 (including) | 4.0.95 (including) |
| Ntp | Ntp | 4.0.96 (including) | 4.0.96 (including) |
| Ntp | Ntp | 4.0.97 (including) | 4.0.97 (including) |
| Ntp | Ntp | 4.0.98 (including) | 4.0.98 (including) |
| Ntp | Ntp | 4.0.99 (including) | 4.0.99 (including) |
| Ntp | Ntp | 4.1.0 (including) | 4.1.0 (including) |
| Ntp | Ntp | 4.1.2 (including) | 4.1.2 (including) |
| Ntp | Ntp | 4.2.0 (including) | 4.2.0 (including) |
| Ntp | Ntp | 4.2.2 (including) | 4.2.2 (including) |
| Ntp | Ntp | 4.2.2p1 (including) | 4.2.2p1 (including) |
| Ntp | Ntp | 4.2.2p2 (including) | 4.2.2p2 (including) |
| Ntp | Ntp | 4.2.2p3 (including) | 4.2.2p3 (including) |
| Ntp | Ntp | 4.2.5 (including) | 4.2.5 (including) |
| Red Hat Enterprise Linux 3 | RedHat | ntp-0:4.1.2-6.el3 | * |
| Red Hat Enterprise Linux 4 | RedHat | ntp-0:4.2.0.a.20040617-8.el4_8.1 | * |
| Red Hat Enterprise Linux 5 | RedHat | ntp-0:4.2.2p1-9.el5_4.1 | * |
| Ntp | Ubuntu | dapper | * |
| Ntp | Ubuntu | devel | * |
| Ntp | Ubuntu | hardy | * |
| Ntp | Ubuntu | intrepid | * |
| Ntp | Ubuntu | jaunty | * |
| Ntp | Ubuntu | karmic | * |
| Ntp | Ubuntu | upstream | * |
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-005.txt.asc
- http://aix.software.ibm.com/aix/efixes/security/xntpd_advisory.asc
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560074
- http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673
- http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10691
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://marc.info/?l=bugtraq\u0026m=130168580504508\u0026w=2
- http://marc.info/?l=bugtraq\u0026m=136482797910018\u0026w=2
- http://secunia.com/advisories/37629
- http://secunia.com/advisories/37922
- http://secunia.com/advisories/38764
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38832
- http://secunia.com/advisories/38834
- http://secunia.com/advisories/39593
- http://security-tracker.debian.org/tracker/CVE-2009-3563
- http://securitytracker.com/id?1023298
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1
- http://support.avaya.com/css/P8/documents/100071808
- http://support.ntp.org/bin/view/Main/SecurityNotice#DoS_attack_from_certain_NTP_mode
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047
- http://www.debian.org/security/2009/dsa-1948
- http://www.kb.cert.org/vuls/id/568372
- http://www.kb.cert.org/vuls/id/MAPG-7X7V6J
- http://www.kb.cert.org/vuls/id/MAPG-7X7VD7
- http://www.securityfocus.com/bid/37255
- http://www.vupen.com/english/advisories/2010/0510
- http://www.vupen.com/english/advisories/2010/0528
- http://www.vupen.com/english/advisories/2010/0993
- https://bugzilla.redhat.com/show_bug.cgi?id=531213
- https://lists.ntp.org/pipermail/announce/2009-December/000086.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11225
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12141
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19376
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7076
- https://rhn.redhat.com/errata/RHSA-2009-1648.html
- https://rhn.redhat.com/errata/RHSA-2009-1651.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- https://support.ntp.org/bugs/show_bug.cgi?id=1331
- https://www.kb.cert.org/vuls/id/417980
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00763.html
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00809.html
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-005.txt.asc
- http://aix.software.ibm.com/aix/efixes/security/xntpd_advisory.asc
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560074
- http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10673
- http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10691
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://marc.info/?l=bugtraq\u0026m=130168580504508\u0026w=2
- http://marc.info/?l=bugtraq\u0026m=136482797910018\u0026w=2
- http://secunia.com/advisories/37629
- http://secunia.com/advisories/37922
- http://secunia.com/advisories/38764
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38832
- http://secunia.com/advisories/38834
- http://secunia.com/advisories/39593
- http://security-tracker.debian.org/tracker/CVE-2009-3563
- http://securitytracker.com/id?1023298
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1
- http://support.avaya.com/css/P8/documents/100071808
- http://support.ntp.org/bin/view/Main/SecurityNotice#DoS_attack_from_certain_NTP_mode
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047
- http://www.debian.org/security/2009/dsa-1948
- http://www.kb.cert.org/vuls/id/568372
- http://www.kb.cert.org/vuls/id/MAPG-7X7V6J
- http://www.kb.cert.org/vuls/id/MAPG-7X7VD7
- http://www.securityfocus.com/bid/37255
- http://www.vupen.com/english/advisories/2010/0510
- http://www.vupen.com/english/advisories/2010/0528
- http://www.vupen.com/english/advisories/2010/0993
- https://bugzilla.redhat.com/show_bug.cgi?id=531213
- https://lists.ntp.org/pipermail/announce/2009-December/000086.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11225
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12141
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19376
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7076
- https://rhn.redhat.com/errata/RHSA-2009-1648.html
- https://rhn.redhat.com/errata/RHSA-2009-1651.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- https://support.ntp.org/bugs/show_bug.cgi?id=1331
- https://www.kb.cert.org/vuls/id/417980
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00763.html
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00809.html