CVE-2009-3563 Information

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) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.

Reference

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&id=JSA10673 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10691 http://lists.vmware.com/pipermail/security-announce/2010/000082.html http://marc.info/?l=bugtraq&m=130168580504508&w=2 http://marc.info/?l=bugtraq&m=136482797910018&w=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://securitytracker.com/id?1023298 http://security-tracker.debian.org/tracker/CVE-2009-3563 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/SecurityNoticeDoS_attack_from_certain_NTP_mode 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 http://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659 http://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047 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/oval3Aorg.mitre.oval3Adef3A11225 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A12141 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A19376 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A7076 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.redhat.com/archives/fedora-package-announce/2009-December/msg00763.html https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00809.html