Coreutils
CVE-2016-2781
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
|
| Impact | CVSS score of 4.6 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, user interaction required. EPSS exploitation probability: 0.08%. |
| Exploit ScenarioDerived | Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAI
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. Rated medium severity (CVSS 4.6), this vulnerability is low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
This vulnerability is classified under CWE-20. 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. Affected products include: Gnu Coreutils.
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Severity by source
AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
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.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)CVE.org
The parse_datetime function in GNU coreutils allows remote attackers to cause a denial of service (crash) or possibly ex
Recursive chmod operations can bypass --preserve-root protection in uutils coreutils versions prior to 0.6.0, allowing l
Local privilege escalation in uutils coreutils mkfifo allows authenticated users to downgrade permissions on arbitrary f
The ln utility in uutils coreutils fails to process source paths containing non-UTF-8 filename bytes when using target-d
The chmod utility in uutils coreutils versions prior to 0.6.0 incorrectly reports success (exit code 0) when recursively
The mknod utility in uutils coreutils creates device nodes before atomically applying SELinux security labels, and fails
The printenv utility in uutils coreutils versions before 0.6.0 silently omits environment variables containing invalid U
Privilege escalation to root in uutils coreutils chroot utility allows low-privileged local attackers with write access
Bypass of --preserve-root protection in uutils coreutils rm utility allows local users to recursively delete the root fi
Local privilege escalation in uutils coreutils before 0.10.0: the `install` utility applies a requested setuid/setgid mo
Logic error in uutils coreutils cut utility causes incorrect behavior when combining the -s (only-delimited), -z (null-t
The id utility in uutils coreutils displays incorrect effective user information in its pretty-print output when real an
NVD
CVE.org
EPSS
GitHub PoC
Exploit-DB