CVE-2016-0727: canonical ubuntu_linux
Vulnerability summary
CVE-2016-0727 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 69% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 14-04-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.25%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.25% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
NTP - Local Privilege Escalation
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04
Debian1 product
- ntp< 1:4.2.8p9+dfsg-2
Ubuntu1 product
- ntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 | < 1:4.2.8p4+dfsg-3ubuntu5.3
3 vendors · 3 products
References
11 links- packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.htmlX Refsource MISCExploitThird Party AdvisoryVDB Entry
- bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050X Refsource CONFIRMIssue TrackingPatchVendor Advisory
