Description (CNA)
The comm utility in uutils coreutils incorrectly consumes data from non-regular file inputs before performing comparison operations. The are_files_identical function opens and reads from both input paths to compare content without first verifying if the paths refer to regular files. If an input path is a FIFO or a pipe, this pre-read operation drains the stream, leading to silent data loss before the actual comparison logic is executed. Additionally, the utility may hang indefinitely if it attempts to pre-read from infinite streams like /dev/zero.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Uutils / coreutils | affected 0 before 0.6.0 |
CWE
CWE-20
References
ADP enrichment
No English description supplied.