Vulnerability in NTP
CVE-2016-7429
NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.074 (94.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.074 · newest: 0.074 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- h20566.www2.hpe.com/hpsc/doc/public/display
- rhn.redhat.com/errata/RHSA-2017-0252.html (vendor-advisory)
- support.ntp.org/bin/view/Main/SecurityNotice (Vendor Advisory)
- nwtime.org/ntp428p9_release/ (Release Notes, Vendor Advisory)
- www.kb.cert.org/vuls/id/633847 (US Government Resource, Third Party Advisory, third-party-advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- www.securitytracker.com/id/1037354 (vdb-entry)
- bto.bluecoat.com/security-advisory/sa139
- www.securityfocus.com/bid/94453 (vdb-entry)
- support.ntp.org/bin/view/Main/NtpBug3072 (Mitigation, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-7429?
- CVE-2016-7429 is a low-severity vulnerability in NTP, classified under CWE-18. CVSS score: 3.7/10. Published 2017-01-13.
- How severe is CVE-2016-7429?
- Low severity. CVSS v3 base score is 3.7 out of 10.
- Is CVE-2016-7429 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.