Vulnerability in Canonical Ubuntu Linux
CVE-2016-0727
The crontab script in the ntp package before 1:4.2.6.p3+dfsg-1ubuntu3.11 on Ubuntu 12.04 LTS, before 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 on Ubuntu 14.04 LTS, on Ubuntu Wily, and before 1:4.2.8p4+dfsg-3ubuntu5.3 on Ubuntu 16.04 LTS allows local users with access to the ntp account to write to arbitrary files and consequently gain privileges via vectors involving statistics directory cleanup.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.ubuntu.com/usn/USN-3096-1 (vendor-advisory, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- www.securitytracker.com/id/1034808 (VDB Entry, Third Party Advisory, vdb-entry)
- packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.html (Exploit, VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/81552 (VDB Entry, Third Party Advisory, vdb-entry)
- bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050 (Patch, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-0727?
- CVE-2016-0727 is a high-severity vulnerability in Canonical Ubuntu Linux, classified under CWE-264. CVSS score: 7.8/10. Published 2017-04-14.
- How severe is CVE-2016-0727?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-0727 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.