Unrated severityNVD Advisory· Published Jun 4, 2020· Updated May 5, 2025
CVE-2020-13817
CVE-2020-13817
Description
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
Affected products
24- ntp/ntpddescription
- osv-coords23 versionspkg:rpm/opensuse/ntp&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/ntp&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/ntp&distro=openSUSE%20Tumbleweedpkg:rpm/suse/ntp&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/ntp&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP1pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP2pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/ntp&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/ntp&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/ntp&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208
< 4.2.8p15-lp151.2.3.1+ 22 more
- (no CPE)range: < 4.2.8p15-lp151.2.3.1
- (no CPE)range: < 4.2.8p15-lp152.3.3.1
- (no CPE)range: < 4.2.8p15-7.2
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-4.10.1
- (no CPE)range: < 4.2.8p15-4.10.1
- (no CPE)range: < 4.2.8p15-64.16.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-4.10.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-4.10.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
- (no CPE)range: < 4.2.8p15-88.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlmitrevendor-advisoryx_refsource_SUSE
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlmitrevendor-advisoryx_refsource_SUSE
- security.gentoo.org/glsa/202007-12mitrevendor-advisoryx_refsource_GENTOO
- support.ntp.org/bin/view/Main/NtpBug3596mitrex_refsource_MISC
- bugs.ntp.org/show_bug.cgimitrex_refsource_MISC
- security.netapp.com/advisory/ntap-20200625-0004/mitrex_refsource_CONFIRM
- www.oracle.com/security-alerts/cpujan2022.htmlmitrex_refsource_MISC
News mentions
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