Description

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.

INFO

Published Date :

2026-04-22T16:07:54.366Z

Last Modified :

2026-04-22T18:11:31.441Z

Source :

canonical
AFFECTED PRODUCTS

The following products are affected by CVE-2026-35347 vulnerability.

Vendors Products
Uutils
  • Coreutils
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-35347.

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