A logic error in the ln utility of uutils coreutils causes the program to reject source paths containing non-UTF-8 filename bytes when using target-directory forms (e.g., ln SOURCE... DIRECTORY). While GNU ln treats filenames as raw bytes and creates the links correctly, the uutils implementation enforces UTF-8 encoding, resulting in a failure to stat the file and a non-zero exit code. In environments where automated scripts or system tasks process valid but non-UTF-8 filenames common on Unix filesystems, this divergence causes the utility to fail, leading to a local denial of service for those specific operations.
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Affected Vendors & Products
References
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| https://github.com/uutils/coreutils/pull/11403 |
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History
Wed, 22 Apr 2026 18:15:00 +0000
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ssvc
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Wed, 22 Apr 2026 16:30:00 +0000
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| Description | A logic error in the ln utility of uutils coreutils causes the program to reject source paths containing non-UTF-8 filename bytes when using target-directory forms (e.g., ln SOURCE... DIRECTORY). While GNU ln treats filenames as raw bytes and creates the links correctly, the uutils implementation enforces UTF-8 encoding, resulting in a failure to stat the file and a non-zero exit code. In environments where automated scripts or system tasks process valid but non-UTF-8 filenames common on Unix filesystems, this divergence causes the utility to fail, leading to a local denial of service for those specific operations. | |
| Title | uutils coreutils ln Local Denial of Service via Improper Handling of Non-UTF-8 Filenames | |
| Weaknesses | CWE-176 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2026-04-22T17:20:29.756Z
Reserved: 2026-04-02T12:58:56.088Z
Link: CVE-2026-35373
Updated: 2026-04-22T17:20:19.459Z
Status : Awaiting Analysis
Published: 2026-04-22T17:16:41.997
Modified: 2026-04-22T21:23:52.620
Link: CVE-2026-35373
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OpenCVE Enrichment
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