The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.
References
Link Providers
http://bugs.ntp.org/show_bug.cgi?id=2781 cve-icon cve-icon
http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html cve-icon cve-icon
http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html cve-icon cve-icon
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html cve-icon cve-icon
http://marc.info/?l=bugtraq&m=143213867103400&w=2 cve-icon cve-icon
http://marc.info/?l=bugtraq&m=145750740530849&w=2 cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2015-1459.html cve-icon cve-icon
http://support.apple.com/kb/HT204942 cve-icon cve-icon
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities cve-icon cve-icon
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd cve-icon cve-icon
http://tools.cisco.com/security/center/viewAlert.x?alertId=38275 cve-icon cve-icon
http://www.debian.org/security/2015/dsa-3222 cve-icon cve-icon
http://www.debian.org/security/2015/dsa-3223 cve-icon cve-icon
http://www.kb.cert.org/vuls/id/374268 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDVSA-2015:202 cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html cve-icon cve-icon
http://www.securityfocus.com/bid/73950 cve-icon cve-icon
http://www.securitytracker.com/id/1032031 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2567-1 cve-icon cve-icon
https://kc.mcafee.com/corporate/index?page=content&id=SB10114 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2015-1799 cve-icon
https://security.gentoo.org/glsa/201509-01 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2015-1799 cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2015-04-08T10:00:00

Updated: 2024-08-06T04:54:16.094Z

Reserved: 2015-02-17T00:00:00

Link: CVE-2015-1799

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2015-04-08T10:59:05.717

Modified: 2024-11-21T02:26:10.183

Link: CVE-2015-1799

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-04-07T00:00:00Z

Links: CVE-2015-1799 - Bugzilla