CVE-2016-2781
MEDIUMCVSS 4.6/10EPSS 0.43%
Last modified
CVE-2016-2781 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. chroot in GNU coreutils, when used with --userspec, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
chroot in GNU coreutils, when used with --userspec, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Coreutils | All versions |
References
- http://www.openwall.com/lists/oss-security/2016/02/28/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/02/28/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/02/28/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/02/28/3Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-2781?
chroot in GNU coreutils, when used with --userspec, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
How severe is CVE-2016-2781?
CVE-2016-2781 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2781?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2016-2781?
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