CVE-2016-2779

7.8 highEPSS 0.4%

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.

Severity

CVSS 3.0

7.8 high

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-264
Published: 2017-02-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

kernel:util-linux

References

http://www.openwall.com/lists/oss-security/2016/02/27/1
http://www.openwall.com/lists/oss-security/2016/02/27/2
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815922
http://www.openwall.com/lists/oss-security/2016/02/27/1
http://www.openwall.com/lists/oss-security/2016/02/27/2

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