CVE-2016-4954

CWE-362 — Race Condition11 documents10 sources
Severity
7.5HIGH
EPSS
2.9%
top 13.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
NTP NTPOpensuse LeapOpensuse Opensuse+6 more
Timeline
PublishedJul 5
Latest updateMay 13

Description

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages10 packages

▶NVDopensuse/leap42.1
▶NVDntp/ntp4.2.0 — 4.2.8+2
▶Debianntp< 1:4.2.8p8+dfsg-1
▶NVDsuse/manager2.1
▶NVDoracle/solaris10, 11.3+1

Patches

Patch: support.ntp.org ↗Patch: support.ntp.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-w5gw-rhc6-c5g8: The process_packet function in ntp_proto↗2022-05-13
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OSV
CVE-2016-4954: The process_packet function in ntp_proto↗2016-07-05
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CVEList
CVE-2016-4954: The process_packet function in ntp_proto↗2016-07-05
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📋Vendor Advisories

5
Ubuntu
NTP vulnerabilities↗2016-10-05
▶
BSD
FreeBSD-SA-16:24.ntp: Multiple vulnerabilities of ntp↗2016-06-04
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Cisco
Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: June 2016↗2016-06-03
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Red Hat
ntp: partial processing of spoofed packets↗2016-06-02
▶
Debian
CVE-2016-4954: ntp - The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 all...↗2016
▶

💬Community

2
Bugzilla
CVE-2015-8139 CVE-2016-4954 CVE-2016-4955 CVE-2016-4956 ntp: various flaws [fedora-all]↗2016-06-02
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Bugzilla
CVE-2016-4954 ntp: partial processing of spoofed packets↗2016-01-27
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