Red Hat Bugzilla – Bug 1238136
CVE-2015-5146 ntp: ntpd control message crash on crafted NUL-byte in configuration directive (VU#668167)
Last modified: 2016-06-13 08:04:19 EDT
A flaw was found in the way ntpd processed certain remote configuration packets. An attacker could use a specially crafted package to cause ntpd to crash if: * ntpd enabled remote configuration * The attacker had the knowledge of the configuration password * The attacker had access to a computer entrusted to perform remote configuration Note that remote configuration is disabled by default in NTP. External References: http://support.ntp.org/bin/view/Main/SecurityNotice#June_2015_NTP_Security_Vulnerabi
Created ntp tracking bugs for this issue: Affects: fedora-all [bug 1238140]
Upstream issue: http://bugs.ntp.org/show_bug.cgi?id=2853
ntp-4.2.6p5-33.fc21 has been submitted as an update to Fedora 21. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14211
ntp-4.2.6p5-33.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14212
ntp-4.2.6p5-33.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14213
ntp-4.2.6p5-33.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update ntp'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14213
ntp-4.2.6p5-33.fc21 has been pushed to the Fedora 21 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update ntp'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14211
ntp-4.2.6p5-33.fc22 has been pushed to the Fedora 22 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update ntp'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14212
ntp-4.2.6p5-33.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
ntp-4.2.6p5-33.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
ntp-4.2.6p5-34.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
This has been closed as notabug for the following reason: This issue looks like more of a hardening problem. To exploit this, the attacker needs privileges that allow them to change the configuration file. If an attacker is able change the configuration, they can do a lot worse things than the issue covered by this CVE. Currently, it's not clear how this CVE crosses security boundaries.