CVE-2015-8158

Severity: medium (CVSS 5.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-01-30 · updated 2026-06-17

Description

The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (infinite loop) via crafted packets with incorrect values.

Affected products

NTP: through 4.2.8; 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5 (+83)

References

http://rhn.redhat.com/errata/RHSA-2016-2583.html
http://support.ntp.org/bin/view/Main/NtpBug2948
http://www.debian.org/security/2016/dsa-3629
http://www.securityfocus.com/bid/81814
http://www.securitytracker.com/id/1034782
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
https://security.gentoo.org/glsa/201607-15
https://security.netapp.com/advisory/ntap-20171031-0001/
https://www.kb.cert.org/vuls/id/718152
http://rhn.redhat.com/errata/RHSA-2016-2583.html

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