CVE-2016-4956 in Ubuntu

CVE-2016-4956

Priority

Description

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of
service (interleaved-mode transition and time change) via a spoofed
broadcast packet. NOTE: this vulnerability exists because of an incomplete
fix for CVE-2016-1548.

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4956
http://support.ntp.org/bin/view/Main/SecurityNotice#June_2016_ntp_4_2_8p8_NTP_Securi
https://ubuntu.com/security/notices/USN-3096-1

Bugs

http://support.ntp.org/bin/view/Main/NtpBug3042

Notes

mdeslaur

incomplete fix for CVE-2016-1548

Package

Source: ntp (LP Ubuntu Debian)

Upstream:	needs-triage
Ubuntu 16.04 ESM:	released (1:4.2.8p4+dfsg-3ubuntu5.3)
Ubuntu 14.04 ESM:	released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.10)
Ubuntu 20.04 FIPS Compliant:	not-affected (1:4.2.8p8+dfsg-1ubuntu2)

Patches:

Vendor:

http://pkgs.fedoraproject.org/cgit/rpms/ntp.git/tree/ntp-4.2.6p5-cve-2016-4956.patch

More Information

Updated: 2022-04-13 12:22:40 UTC (commit f411bd370d482ef4385c4e751d121a4055fbc009)