Duplicate Advisory: uutils coreutils has an Improper Preservation of Permissions issue
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r9hw-mj3w-phcq. This link is maintained to preserve external references. ### Original Description The mknod utility in uutils coreutils fails to handle security labels atomically by creating device nodes before setting the SELinux context. If labeling fails, the utility attempts cleanup using std::fs::remove_dir, which cannot remove device nodes or FIFOs. This leaves mislabeled nodes behind with incorrect default contexts, potentially allowing unauthorized access to device nodes that should have been restricted by mandatory access controls.
AI Analysis
Technical Summary
This vulnerability in the mknod utility of uutils coreutils (versions <0.6.0) involves improper preservation of permissions related to SELinux labeling. The utility creates device nodes before applying the SELinux context atomically. If the labeling operation fails, the cleanup process uses std::fs::remove_dir, which cannot remove device nodes or FIFOs, leaving behind mislabeled device nodes. These nodes retain incorrect default security contexts, which may allow unauthorized access to restricted device nodes, violating mandatory access controls. The issue is categorized under CWE-281 (Improper Preservation of Permissions).
Potential Impact
The impact is limited to potential unauthorized access to device nodes due to incorrect SELinux labeling. Confidentiality and integrity are affected at a low level, with no impact on availability. The vulnerability requires local access with high privileges to exploit and does not involve user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should be cautious when using the mknod utility in affected versions and consider manual verification of device node labels after creation. Monitor for updates from the uutils coreutils maintainers regarding a fix.
Duplicate Advisory: uutils coreutils has an Improper Preservation of Permissions issue
Description
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r9hw-mj3w-phcq. This link is maintained to preserve external references. ### Original Description The mknod utility in uutils coreutils fails to handle security labels atomically by creating device nodes before setting the SELinux context. If labeling fails, the utility attempts cleanup using std::fs::remove_dir, which cannot remove device nodes or FIFOs. This leaves mislabeled nodes behind with incorrect default contexts, potentially allowing unauthorized access to device nodes that should have been restricted by mandatory access controls.
CVSS v3.1
Score 3.4low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the mknod utility of uutils coreutils (versions <0.6.0) involves improper preservation of permissions related to SELinux labeling. The utility creates device nodes before applying the SELinux context atomically. If the labeling operation fails, the cleanup process uses std::fs::remove_dir, which cannot remove device nodes or FIFOs, leaving behind mislabeled device nodes. These nodes retain incorrect default security contexts, which may allow unauthorized access to restricted device nodes, violating mandatory access controls. The issue is categorized under CWE-281 (Improper Preservation of Permissions).
Potential Impact
The impact is limited to potential unauthorized access to device nodes due to incorrect SELinux labeling. Confidentiality and integrity are affected at a low level, with no impact on availability. The vulnerability requires local access with high privileges to exploit and does not involve user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should be cautious when using the mknod utility in affected versions and consider manual verification of device node labels after creation. Monitor for updates from the uutils coreutils maintainers regarding a fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-79rc-qpw3-jv92
- Osv Schema Version
- 1.4.0
- Aliases
- []
- Ecosystems
- ["crates.io"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6a4c33f027e9c797195ec888
Added to database: 07/06/2026, 23:02:08 UTC
Last enriched: 07/06/2026, 23:05:36 UTC
Last updated: 07/31/2026, 12:27:30 UTC
Views: 6
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