CVE-2015-7979 — Improper Input Validation in NTP

CWE-19CWE-20 — Improper Input ValidationCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-200 — Sensitive Information ExposureCWE-287 — Improper AuthenticationCWE-399CWE-400 — Uncontrolled Resource Consumption27 documents11 sources
Severity
7.5HIGHNVD
OSV6.5
EPSS
4.2%
top 11.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
NTPDebian NTPPaloalto Pan-os
Timeline
PublishedJan 30
Latest updateMay 13

Description

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/ntp< ntp 1:4.2.8p7+dfsg-1 (bullseye)
▶Debianntp/ntp< 1:4.2.8p7+dfsg-1
▶Ubuntuntp/ntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10+1
▶NVDntp/ntp4.2.8+89
▶Palo Altopaloalto/pan-os

🔴Vulnerability Details

3
GHSA
GHSA-9fqj-9gp8-4rwc: NTP before 4↗2022-05-13
▶
OSV
CVE-2015-7979: NTP before 4↗2017-01-30
▶
OSV
ntp vulnerabilities↗2016-10-05
▶

📋Vendor Advisories

19
CISA ICS
Siemens TIM 4R-IE Devices↗2021-04-13
▶
Ubuntu
NTP vulnerabilities↗2016-10-05
▶
Palo Alto
PAN-SA-2016-0019 NTP Vulnerabilities↗2016-08-15
▶
Red Hat
ntp: bad authentication demobilizes ephemeral associations↗2016-06-02
▶
Cisco
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: January 2016↗2016-01-28
▶

💬Community

4
Bugzilla
CVE-2016-4953 ntp: bad authentication demobilizes ephemeral associations↗2016-05-30
▶
Bugzilla
CVE-2016-1547 ntp: crypto-NAK preemptable association denial of service↗2016-04-28
▶
Bugzilla
CVE-2015-7979 ntp: off-path denial of service on authenticated broadcast mode↗2016-01-20
▶
Bugzilla
CVE-2015-7974 CVE-2015-8138 CVE-2015-7973 CVE-2015-7975 CVE-2015-7976 CVE-2015-7977 CVE-2015-7978 CVE-2015-7979 CVE-2015-8158 CVE-2015-8139 CVE-2015-8140 ntp: various flaws [fedora-all]↗2016-01-20
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