漏洞描述
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.
影响产品
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
aix.software.ibm.comhttp://aix.software.ibm.com/aix/efixes/security/xntpd_advisory.asc↗bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=531213↗support.ntp.orghttps://support.ntp.org/bugs/show_bug.cgi?id=1331↗support.ntp.orghttp://support.ntp.org/bin/view/Main/SecurityNotice#DoS_attack_from_certain_NTP_mode↗secunia.comhttp://secunia.com/advisories/37629↗www.vupen.comhttp://www.vupen.com/english/advisories/2010/0528↗secunia.comhttp://secunia.com/advisories/37922↗secunia.comhttp://secunia.com/advisories/38794↗rhn.redhat.comhttps://rhn.redhat.com/errata/RHSA-2010-0095.html↗www.debian.orghttp://www.debian.org/security/2009/dsa-1948↗rhn.redhat.comhttps://rhn.redhat.com/errata/RHSA-2009-1651.html↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg1IZ71047↗lists.ntp.orghttps://lists.ntp.org/pipermail/announce/2009-December/000086.html↗secunia.comhttp://secunia.com/advisories/39593↗www.vupen.comhttp://www.vupen.com/english/advisories/2010/0510↗secunia.comhttp://secunia.com/advisories/38834↗www-01.ibm.comhttp://www-01.ibm.com/support/docview.wss?uid=isg1IZ68659↗oval.cisecurity.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19376↗security-tracker.debian.orghttp://security-tracker.debian.org/tracker/CVE-2009-3563↗www.redhat.comhttps://www.redhat.com/archives/fedora-package-announce/2009-December/msg00809.html↗secunia.comhttp://secunia.com/advisories/38832↗marc.infohttp://marc.info/?l=bugtraq&m=130168580504508&w=2↗www.kb.cert.orghttps://www.kb.cert.org/vuls/id/417980↗bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=560074↗oval.cisecurity.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7076↗oval.cisecurity.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12141↗kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673↗secunia.comhttp://secunia.com/advisories/38764↗www.securityfocus.comhttp://www.securityfocus.com/bid/37255↗sunsolve.sun.comhttp://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1↗rhn.redhat.comhttps://rhn.redhat.com/errata/RHSA-2009-1648.html↗marc.infohttp://marc.info/?l=bugtraq&m=136482797910018&w=2↗www.kb.cert.orghttp://www.kb.cert.org/vuls/id/MAPG-7X7V6J↗oval.cisecurity.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11225↗securitytracker.comhttp://securitytracker.com/id?1023298↗www.vupen.comhttp://www.vupen.com/english/advisories/2010/0993↗www.kb.cert.orghttp://www.kb.cert.org/vuls/id/568372↗www.kb.cert.orghttp://www.kb.cert.org/vuls/id/MAPG-7X7VD7↗www.redhat.comhttps://www.redhat.com/archives/fedora-package-announce/2009-December/msg00763.html↗kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10691↗lists.vmware.comhttp://lists.vmware.com/pipermail/security-announce/2010/000082.html↗support.avaya.comhttp://support.avaya.com/css/P8/documents/100071808↗