VulnerabilityModified
CVE-2016-4957
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet.
HIGH 7.5EPSS 44.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 44.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 44.94% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- ntp/ntp · oracle/solaris · suse/manager proxy · suse/openstack cloud · novell/suse manager · opensuse/leap · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server
- Source
- cve@mitre.org
References
- http://bugs.ntp.org/3046Issue Tracking, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.htmlMailing List, Third Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3046Patch, Vendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNoticeRelease Notes, Vendor Advisory
- http://www.kb.cert.org/vuls/id/321640Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
- http://www.securitytracker.com/id/1036037Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201607-15Third Party Advisory
- http://bugs.ntp.org/3046Issue Tracking, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.htmlMailing List, Third Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3046Patch, Vendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNoticeRelease Notes, Vendor Advisory
- http://www.kb.cert.org/vuls/id/321640Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
- http://www.securitytracker.com/id/1036037Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201607-15Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.