Improper Input Validation Affecting ntpdate package, versions <0:4.2.6p5-28.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-NTPDATE-4783453
- published26 Jul 2021
- disclosed21 Mar 2017
Introduced: 21 Mar 2017
CVE-2017-6464 (opens in a new tab)How to fix?
Upgrade RHEL:7 ntpdate to version 0:4.2.6p5-28.el7 or higher.
This issue was patched in RHSA-2018:0855.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntpdate package and not the ntpdate package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote attackers to cause a denial of service (ntpd crash) via a malformed mode configuration directive.
References
- http://www.securityfocus.com/bid/97050
- https://support.apple.com/HT208144
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
- http://support.ntp.org/bin/view/Main/NtpBug3389
- http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
- https://access.redhat.com/security/cve/CVE-2017-6464
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc
- https://access.redhat.com/errata/RHSA-2018:0855
- http://www.securitytracker.com/id/1038123