Improper input validation in NTP
CVE-2015-5146
ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.041 (90.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000
Affected products
- NTP
- Debian Linux — versions 7.0, 8.0
- Fedoraproject Fedora — versions 21, 22, 23
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/75589 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201509-01 (vendor-advisory, VDB Entry, Third Party Advisory, Mitigation)
- lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1034168 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2015/dsa-3388 (vendor-advisory, Third Party Advisory)
- bugs.ntp.org/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html (vendor-advisory, Third Party Advisory)
- support.ntp.org/bin/view/Main/SecurityNotice (Vendor Advisory)
Frequently asked questions
- What is CVE-2015-5146?
- CVE-2015-5146 is a medium-severity vulnerability in NTP, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2017-08-24.
- How severe is CVE-2015-5146?
- Medium severity. CVSS v3 base score is 5.3 out of 10.