high
7.5
CWE
400
Advisory Published
Updated

CVE-2016-7426

First published: Fri Jan 13 2017(Updated: )

Last updated 24 July 2024

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/ntp
1:4.2.8p15+dfsg-1
NTP>=4.2.6<4.2.8
NTP>=4.3.0<4.3.94
NTP=4.2.5-p203
NTP=4.2.5-p204
NTP=4.2.5-p205
NTP=4.2.5-p206
NTP=4.2.5-p207
NTP=4.2.5-p208
NTP=4.2.5-p209
NTP=4.2.5-p210
NTP=4.2.5-p211
NTP=4.2.5-p212
NTP=4.2.5-p213
NTP=4.2.5-p214
NTP=4.2.5-p215
NTP=4.2.5-p216
NTP=4.2.5-p217
NTP=4.2.5-p218
NTP=4.2.5-p219
NTP=4.2.5-p220
NTP=4.2.5-p221
NTP=4.2.5-p222
NTP=4.2.5-p223
NTP=4.2.5-p224
NTP=4.2.5-p225
NTP=4.2.5-p226
NTP=4.2.5-p227
NTP=4.2.5-p228
NTP=4.2.5-p229
NTP=4.2.5-p230
NTP=4.2.5-p231_rc1
NTP=4.2.5-p232_rc1
NTP=4.2.5-p233_rc1
NTP=4.2.5-p234_rc1
NTP=4.2.5-p235_rc1
NTP=4.2.5-p236_rc1
NTP=4.2.5-p237_rc1
NTP=4.2.5-p238_rc1
NTP=4.2.5-p239_rc1
NTP=4.2.5-p240_rc1
NTP=4.2.5-p241_rc1
NTP=4.2.5-p242_rc1
NTP=4.2.5-p243_rc1
NTP=4.2.5-p244_rc1
NTP=4.2.5-p245_rc1
NTP=4.2.5-p246_rc1
NTP=4.2.5-p247_rc1
NTP=4.2.5-p248_rc1
NTP=4.2.5-p249_rc1
NTP=4.2.5-p250_rc1
NTP=4.2.8
NTP=4.2.8-p1
NTP=4.2.8-p1-beta1
NTP=4.2.8-p1-beta2
NTP=4.2.8-p1-beta3
NTP=4.2.8-p1-beta4
NTP=4.2.8-p1-beta5
NTP=4.2.8-p1-rc1
NTP=4.2.8-p1-rc2
NTP=4.2.8-p2
NTP=4.2.8-p2-rc1
NTP=4.2.8-p2-rc2
NTP=4.2.8-p2-rc3
NTP=4.2.8-p3
NTP=4.2.8-p3-rc1
NTP=4.2.8-p3-rc2
NTP=4.2.8-p3-rc3
NTP=4.2.8-p4
NTP=4.2.8-p5
NTP=4.2.8-p6
NTP=4.2.8-p7
NTP=4.2.8-p8
Ubuntu=12.04
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
NTP>=b.11.31<c.4.2.8.2.0

Remedy

https://git.centos.org/blob/rpms!ntp.git/4eb1db127a6177011bd913bf4f446e8f701179d6/SOURCES!ntp-4.2.6p5-cve-2016-7426.patch

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-7426?

    CVE-2016-7426 has a severity rating that can vary but is generally classified as medium to high due to its potential to cause denial of service.

  • How do I fix CVE-2016-7426?

    To mitigate CVE-2016-7426, upgrade to NTP version 4.2.8p15 or later.

  • What systems are affected by CVE-2016-7426?

    CVE-2016-7426 affects NTP versions earlier than 4.2.8p9, including several distributions such as Debian and Red Hat.

  • What type of attack does CVE-2016-7426 enable?

    CVE-2016-7426 allows remote attackers to perform denial of service attacks by sending spoofed responses to NTP servers.

  • Is there a patch available for CVE-2016-7426?

    Yes, a patch is available and users should update to NTP version 4.2.8p15 or higher to eliminate the vulnerability.

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