CVE-2017-6463
published 2017-03-27CVE-2017-6463: NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config…
PriorityP429medium6.5CVSS 3.0
AVNACLPRLUINSUCNINAH
EPSS
5.24%
91.7th percentile
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
Affected
100 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | macos_high_sierra | — | — |
| debian | ntp | < ntp 1:4.2.8p10+dfsg-1 (bullseye) | ntp 1:4.2.8p10+dfsg-1 (bullseye) |
| ntp | ntp | — | — |
| ntp | ntp | — | — |
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CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_ubuntu7.5HIGH
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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Ubuntu
NTP vulnerabilities
vendor_ubuntu·2019-01-23·CVSS 7.5
CVE-2016-7426 [HIGH] NTP vulnerabilities
Title: NTP vulnerabilities
Summary: Several security issues were fixed in NTP.
USN-3707-1 and USN-3349-1 fixed several vulnerabilities in NTP. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed
addresses when performing rate limiting. A remote attacker could possibly
use this issue to perform a denial of service. (CVE-2016-7426)
Matthew Van Gundy discovered that NTP incorrectly handled certain crafted
broadcast mode packets. A remote attacker could possibly use this issue to
perform a denial of service. (CVE-2016-7427, CVE-2016-7428)
Matthew Van Gundy discovered that NTP incorrectly handled certain control
mode packets. A remote attacker could use this issue to set or
Apple
CVE-2017-6463: macOS High Sierra 10.13
vendor_apple·2017-09-25·CVSS 6.5
CVE-2017-6463 [MEDIUM] CVE-2017-6463: macOS High Sierra 10.13
Apple Security Update: About the security content of macOS High Sierra 10.13
Product: macOS High Sierra
Version: 10.13
CVE: CVE-2017-6463
Component: Mail Drafts
Impact: An attacker with a privileged network position may be able to intercept mail contents
Description: An encryption issue existed in the handling of mail drafts. This issue was addressed with improved handling of mail drafts meant to be sent encrypted.
Ubuntu
NTP vulnerabilities
vendor_ubuntu·2017-07-05·CVSS 5.9
CVE-2016-2519 [MEDIUM] NTP vulnerabilities
Title: NTP vulnerabilities
Summary: Several security issues were fixed in NTP.
Yihan Lian discovered that NTP incorrectly handled certain large request
data values. A remote attacker could possibly use this issue to cause NTP
to crash, resulting in a denial of service. This issue only affected
Ubuntu 16.04 LTS. (CVE-2016-2519)
Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed
addresses when performing rate limiting. A remote attacker could possibly
use this issue to perform a denial of service. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. (CVE-2016-7426)
Matthew Van Gundy discovered that NTP incorrectly handled certain crafted
broadcast mode packets. A remote attacker could possibly use this issue to
perform a denial of service.
BSD
FreeBSD-SA-17:03.ntp: Multiple vulnerabilities of ntp
bsd_advisories·2017-04-12·CVSS 5.9
CVE-2016-9042 [MEDIUM] FreeBSD-SA-17:03.ntp: Multiple vulnerabilities of ntp
FreeBSD-SA-17:03.ntp Security Advisory
The FreeBSD Project
Topic: Multiple vulnerabilities of ntp
Category: contrib
Module: ntp
Announced: 2017-04-12
Credits: Network Time Foundation
Affects: All supported versions of FreeBSD.
Corrected: 2017-03-28 04:48:17 UTC (stable/11, 11.0-STABLE)
2017-04-12 06:24:35 UTC (releng/11.0, 11.0-RELEASE-p9)
2017-03-28 04:48:55 UTC (stable/10, 10.3-STABLE)
2017-04-12 06:24:35 UTC (releng/10.3, 10.3-RELEASE-p18)
CVE Name: CVE-2017-6464, CVE-2017-6462, CVE-2017-6463, CVE-2016-9042
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit .
I. Background
The ntpd(8) daemon is an implementation of the Network Time Protocol (NTP)
used to synchronize t
Red Hat
ntp: Authenticated DoS via Malicious Config Option
vendor_redhat·2017-03-21·CVSS 6.5
CVE-2017-6463 [MEDIUM] CWE-20 ntp: Authenticated DoS via Malicious Config Option
ntp: Authenticated DoS via Malicious Config Option
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
A vulnerability was discovered in the NTP server's parsing of configuration directives. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message.
Mitigation: Properly monitor your ntpd instances, and auto-restart ntpd (without -g) if it stops running.
Package: ntp (Red Hat Enterprise Linux 5) - Will not fix
Debian
CVE-2017-6463: ntp - NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to...
vendor_debian·2017·CVSS 6.5
CVE-2017-6463 [MEDIUM] CVE-2017-6463: ntp - NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to...
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
Scope: local
bullseye: resolved (fixed in 1:4.2.8p10+dfsg-1)
GHSA
GHSA-gmrg-j497-5g5q: NTP before 4
ghsa_unreviewed·2022-05-14
CVE-2017-6463 [MEDIUM] CWE-20 GHSA-gmrg-j497-5g5q: NTP before 4
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
OSV
ntp vulnerabilities
osv·2017-07-05·CVSS 5.9
CVE-2016-2519 [MEDIUM] ntp vulnerabilities
ntp vulnerabilities
Yihan Lian discovered that NTP incorrectly handled certain large request
data values. A remote attacker could possibly use this issue to cause NTP
to crash, resulting in a denial of service. This issue only affected
Ubuntu 16.04 LTS. (CVE-2016-2519)
Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed
addresses when performing rate limiting. A remote attacker could possibly
use this issue to perform a denial of service. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. (CVE-2016-7426)
Matthew Van Gundy discovered that NTP incorrectly handled certain crafted
broadcast mode packets. A remote attacker could possibly use this issue to
perform a denial of service. This issue only affected Ubuntu 14.04 LTS,
Ubuntu 16.04 LTS,
OSV
CVE-2017-6463: NTP before 4
osv·2017-03-27·CVSS 6.5
CVE-2017-6463 [MEDIUM] CVE-2017-6463: NTP before 4
NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-6464 CVE-2017-6462 CVE-2017-6463 CVE-2017-6458 CVE-2017-6451 ntp: various flaws [fedora-all]
bugzilla·2017-03-23·CVSS 7.8
CVE-2017-6464 [HIGH] CVE-2017-6464 CVE-2017-6462 CVE-2017-6463 CVE-2017-6458 CVE-2017-6451 ntp: various flaws [fedora-all]
CVE-2017-6464 CVE-2017-6462 CVE-2017-6463 CVE-2017-6458 CVE-2017-6451 ntp: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects mul
Bugzilla
CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option
bugzilla·2017-03-20·CVSS 6.5
CVE-2017-6463 [MEDIUM] CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option
CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option
A vulnerability found in the NTP server allows an authenticated remote attacker to crash the daemon by sending an invalid setting via the :config directive. The unpeer option expects a number or an address as an argument. In case the value is "0", a segmentation fault occurs.
Affects: All versions of ntp, up to but not including ntp-4.2.8p10, and ntp-4.3.0 up to, but not including ntp-4.3.94.
Mitigation:
Properly monitor your ntpd instances, and auto-restart ntpd (without -g) if it stops running.
Discussion:
Acknowledgments:
Name: the NTP project
Upstream: Cure53
---
Created ntp tracking bugs for this issue:
Affects: fedora-all [bug 1435163]
---
when ntp-4.2.8p 10 will be released with this fix?
---
This issue h
http://support.ntp.org/bin/view/Main/NtpBug3387http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secuhttp://www.securityfocus.com/bid/97049http://www.securitytracker.com/id/1038123https://access.redhat.com/errata/RHSA-2017:3071https://access.redhat.com/errata/RHSA-2018:0855https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.aschttps://support.apple.com/HT208144https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_ushttps://usn.ubuntu.com/3707-2/http://support.ntp.org/bin/view/Main/NtpBug3387http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secuhttp://www.securityfocus.com/bid/97049http://www.securitytracker.com/id/1038123https://access.redhat.com/errata/RHSA-2017:3071https://access.redhat.com/errata/RHSA-2018:0855https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.aschttps://support.apple.com/HT208144https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_ushttps://usn.ubuntu.com/3707-2/
2017-03-27
Published