Buffer overflow in NTP
CVE-2016-2519
ntpd in NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (ntpd abort) by a large request data value, which triggers the ctl_getitem function to return a NULL value.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.069 (93.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.069 · newest: 0.069 · change: 0.000
Affected products
- NTP — versions 4.3.0, 4.3.1, 4.3.2
Weakness classification (CWE)
References
- support.ntp.org/bin/view/Main/NtpBug3008 (Vendor Advisory)
- www.kb.cert.org/vuls/id/718152 (US Government Resource, Third Party Advisory, third-party-advisory)
- www.securitytracker.com/id/1035705 (vdb-entry)
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (Third Party Advisory)
- security.netapp.com/advisory/ntap-20171004-0002/
- security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc (vendor-advisory)
- www.securityfocus.com/bid/88204 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201607-15 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-2519?
- CVE-2016-2519 is a medium-severity vulnerability in NTP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.9/10. Published 2017-01-30.
- How severe is CVE-2016-2519?
- Medium severity. CVSS v3 base score is 5.9 out of 10.