Vulnerability in NTP
CVE-2015-8158
The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (infinite loop) via crafted packets with incorrect values.
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: 0.075 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.075 · newest: 0.075 · change: 0.000
Affected products
- NTP — versions 4.3.0, 4.3.1, 4.3.2
Public proof-of-concept exploits
References
- www.debian.org/security/2016/dsa-3629 (vendor-advisory)
- h20566.www2.hpe.com/hpsc/doc/public/display
- www.securitytracker.com/id/1034782 (vdb-entry)
- www.kb.cert.org/vuls/id/718152 (US Government Resource, Third Party Advisory, third-party-advisory)
- h20566.www2.hpe.com/hpsc/doc/public/display
- rhn.redhat.com/errata/RHSA-2016-2583.html (vendor-advisory)
- www.securityfocus.com/bid/81814 (VDB Entry, Third Party Advisory, vdb-entry)
- security.netapp.com/advisory/ntap-20171031-0001/
- support.ntp.org/bin/view/Main/NtpBug2948 (Vendor Advisory)
- security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc (vendor-advisory)
Frequently asked questions
- What is CVE-2015-8158?
- CVE-2015-8158 is a medium-severity vulnerability in NTP. CVSS score: 5.9/10. Published 2017-01-30.
- How severe is CVE-2015-8158?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2015-8158 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.