vulnwire
5.9med

CVE-2016-4955

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and a…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
8.8%
percentile 95%
Public exploits
0
none known

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.

Exploit prediction (EPSS)

8.77% probability of exploitation in the next 30 days, higher than 95% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.15.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00028.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • ubuntu.com /usn/USN-3096-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJ · vendor-advisory, x_refsource_FEDORA, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00023.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • security.freebsd.org /advisories/FreeBSD-SA-16:24.ntp.asc · vendor-advisory, x_refsource_FREEBSD, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-07/msg00026.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE · vendor-advisory, x_refsource_FEDORA, x_transferred
  • securityfocus.com /bid/91007 · vdb-entry, x_refsource_BID, x_transferred
  • support.ntp.org /bin/view/Main/NtpBug3043 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1036037 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00024.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • oracle.com /technetwork/topics/security/bulletinapr2016-2952098.html · x_refsource_CONFIRM, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00042.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • bugs.ntp.org /3043 · x_refsource_CONFIRM, x_transferred
  • kb.cert.org /vuls/id/321640 · third-party-advisory, x_refsource_CERT-VN, x_transferred
  • support.ntp.org /bin/view/Main/SecurityNotice · x_refsource_CONFIRM, x_transferred
  • lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ · vendor-advisory, x_refsource_FEDORA, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00040.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00018.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • security.gentoo.org /glsa/201607-15 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • packetstormsecurity.com /files/137321/Slackware-Security-Advisory-ntp-Updates.html · x_refsource_MISC, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd · vendor-advisory, x_refsource_CISCO, x_transferred
  • packetstormsecurity.com /files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.ntp.html · x_refsource_MISC, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00020.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securityfocus.com /archive/1/538599/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • securityfocus.com /archive/1/538600/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • kb.cert.org /vuls/id/321640 · third-party-advisory, x_refsource_CERT-VN, x_transferred
  • securityfocus.com /archive/1/archive/1/538599/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • securityfocus.com /archive/1/archive/1/538600/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • cert-portal.siemens.com /productcert/pdf/ssa-211752.pdf · x_refsource_CONFIRM, x_transferred
  • us-cert.cisa.gov /ics/advisories/icsa-21-159-11 · x_refsource_MISC, x_transferred

Sources

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