Ubuntu fixes local flaws in uutils coreutils mkfifo, dd and tail
mkfifo can reset permissions on an existing file, and dd can hide truncation errors that corrupt data.
38
CVE-2026-35344
- CVSS 3.1
- 3.3 low
- EPSS
- <1%p2
- Published
- ·
- Modified
Description · NVD
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.