Vulnerability in Kernel Util-Linux

CVE-2016-2779

runuser in util-linux allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.

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: 0.004 (32.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2016-2779: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-2779?
CVE-2016-2779 is a high-severity vulnerability in Kernel Util-Linux, classified under CWE-264. CVSS score: 7.8/10. Published 2017-02-07.
How severe is CVE-2016-2779?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2016-2779 known to be exploited?
26 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.