This bug was fixed in the package squashfs-tools - 1:4.4-2ubuntu0.1
---------------
squashfs-tools (1:4.4-2ubuntu0.1) hirsute-security; urgency=medium
* SECURITY UPDATE: Directory traversal via relative paths in unsquashfs
(LP: #1941790)
- debian/patches/0003-CVE-2021-40153.patch:
Treat squashfs images which contain files with names containing
constructs like ../ as corrupted in unsquash-N.c
- CVE-2021-40153
-- Alex Murray <alex.mur...@canonical.com> Fri, 27 Aug 2021 14:54:27
+0930
** Changed in: squashfs-tools (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1941790
Title:
squashfs-tools 4.5 / "write outside directory" exploit fix back port?
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