CVE-2015-1798

Published: Apr 8, 2015Modified: May 6, 2026

1.8

Vector

AV:A/AC:H/Au:N/C:N/I:P/A:N

Exploitability: 3.2 / Impact: 2.9

Source: NVD

Description

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.

Affected (1)

Products: Ntp: Ntp

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Ntp Ntp	Up to 4.2.7p444

Related CWEs

References (42)

http://bugs.ntp.org/show_bug.cgi?id=2779

Source: secalert@redhat.com

http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html

Source: secalert@redhat.com

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html

Source: secalert@redhat.com

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html

Source: secalert@redhat.com

http://marc.info/?l=bugtraq&m=143213867103400&w=2

Source: secalert@redhat.com

http://rhn.redhat.com/errata/RHSA-2015-1459.html

Source: secalert@redhat.com

http://support.apple.com/kb/HT204942

Source: secalert@redhat.com

http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities

Source: secalert@redhat.com

Vendor Advisory

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd

Source: secalert@redhat.com

http://tools.cisco.com/security/center/viewAlert.x?alertId=38276

Source: secalert@redhat.com

http://www.debian.org/security/2015/dsa-3223

Source: secalert@redhat.com

http://www.kb.cert.org/vuls/id/374268

Source: secalert@redhat.com

Third Party AdvisoryUS Government Resource

http://www.mandriva.com/security/advisories?name=MDVSA-2015:202

Source: secalert@redhat.com

http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

Source: secalert@redhat.com

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: secalert@redhat.com

http://www.securityfocus.com/bid/73951

Source: secalert@redhat.com

http://www.securitytracker.com/id/1032032

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2567-1

Source: secalert@redhat.com

https://kc.mcafee.com/corporate/index?page=content&id=SB10114

Source: secalert@redhat.com

https://security.gentoo.org/glsa/201509-01

Source: secalert@redhat.com

http://bugs.ntp.org/show_bug.cgi?id=2779

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://marc.info/?l=bugtraq&m=143213867103400&w=2

Source: af854a3a-2127-422b-91ae-364da2661108

http://rhn.redhat.com/errata/RHSA-2015-1459.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://support.apple.com/kb/HT204942

Source: af854a3a-2127-422b-91ae-364da2661108

http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd

Source: af854a3a-2127-422b-91ae-364da2661108

http://tools.cisco.com/security/center/viewAlert.x?alertId=38276

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.debian.org/security/2015/dsa-3223

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.kb.cert.org/vuls/id/374268

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryUS Government Resource

http://www.mandriva.com/security/advisories?name=MDVSA-2015:202

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/73951

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securitytracker.com/id/1032032

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.ubuntu.com/usn/USN-2567-1

Source: af854a3a-2127-422b-91ae-364da2661108

https://kc.mcafee.com/corporate/index?page=content&id=SB10114

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.gentoo.org/glsa/201509-01

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.