Debian alert DLA-2789-1 (squashfs-tools)

From:
             
 
Thorsten Alteholz <debian@alteholz.de>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 2789-1] squashfs-tools security update
Date:
             
 
Wed, 20 Oct 2021 21:58:00 +0000
Message-ID:
             
 
<alpine.DEB.2.21.2110202156550.15310@postfach.intern.alteholz.me>
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Debian LTS Advisory DLA-2789-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
October 20, 2021                              https://wiki.debian.org/LTS
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Package        : squashfs-tools
Version        : 1:4.3-3+deb9u3
CVE ID         : CVE-2021-41072


Richard Weinberger reported that unsquashfs in squashfs-tools, the tools 
to create and extract Squashfs filesystems, does not check for duplicate 
filenames within a directory. An attacker can take advantage of this flaw 
for writing to arbitrary files to the filesystem if a malformed Squashfs 
image is processed.


For Debian 9 stretch, this problem has been fixed in version 
1:4.3-3+deb9u3.

We recommend that you upgrade your squashfs-tools packages.

For the detailed security status of squashfs-tools please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/squashfs-tools

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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