Code Affecting ntp package, versions <1:4.2.6.p5+dfsg-6
Threat Intelligence
EPSS
0.63% (80th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-NTP-517166
- published 8 Apr 2015
- disclosed 8 Apr 2015
How to fix?
Upgrade Debian:11 ntp to version 1:4.2.6.p5+dfsg-6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2015-1798
- http://support.apple.com/kb/HT204942
- http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
- http://www.kb.cert.org/vuls/id/374268
- http://www.debian.org/security/2015/dsa-3223
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html
- https://security.gentoo.org/glsa/201509-01
- http://marc.info/?l=bugtraq&m=143213867103400&w=2
- http://bugs.ntp.org/show_bug.cgi?id=2779
- https://kc.mcafee.com/corporate/index?page=content&id=SB10114
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd
- http://tools.cisco.com/security/center/viewAlert.x?alertId=38276
- http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://rhn.redhat.com/errata/RHSA-2015-1459.html
- http://www.securityfocus.com/bid/73951
- http://www.securitytracker.com/id/1032032
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-1798
- http://www.ubuntu.com/usn/USN-2567-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:202
- https://access.redhat.com/errata/RHSA-2015:1459
- https://access.redhat.com/errata/RHSA-2015:2231
- https://access.redhat.com/security/cve/CVE-2015-1798
- https://bugzilla.redhat.com/show_bug.cgi?id=1199430
CVSS Scores
version 3.1