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Description

The dd utility in uutils coreutils suppresses errors during file truncation operations by unconditionally calling Result::ok() on truncation attempts. While intended to mimic GNU behavior for special files like /dev/null, the uutils implementation also hides failures on regular files and directories caused by full disks or read-only file systems. This can lead to silent data corruption in backup or migration scripts, as the utility may report a successful operation even when the destination file contains old or garbage data.

PUBLISHED Reserved 2026-04-02 | Published 2026-04-22 | Updated 2026-04-22 | Assigner canonical




LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-252: Unchecked Return Value

Product status

Default status
affected

Credits

Zellic finder

References

github.com/uutils/coreutils/issues/9745 issue-tracking

cve.org (CVE-2026-35344)

nvd.nist.gov (CVE-2026-35344)

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