mirror of
https://gitlab.com/buildroot.org/buildroot.git
synced 2026-09-09 16:01:54 -09:00
30b10fd08f
This fixes the following vulnerability:
- CVE-2026-11940:
tarfile.extractall() with the 'data' or 'tar' filter could be
bypassed by a crafted archive where a hardlink references a symlink
stored at a deeper name than the hardlink itself. The extraction
fallback validated the symlink at it's archived location but
recreated it at the hardlink's shallower path, letting a relative
target the filter judged contained escape the destination directory.
This allowed a malicious tar archive to create a symlink pointing
outside the destination, enabling out-of-destination file reads or
writes. This was an incomplete fix of CVE-2025-4330.
https://www.cve.org/CVERecord?id=CVE-2026-11940
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
(cherry picked from commit 1a0164ac81)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>