Debian Security Advisory

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    Package : squashfs-tools


    CVE ID : CVE-2021-41072


    Debian Bug : 994262



    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 the oldstable distribution (buster), this problem has been fixed in version 1:4.3-12+deb10u2.



    For the stable distribution (bullseye), this problem has been fixed in version 1:4.4-2+deb11u2.



    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:


    Information on source package squashfs-tools



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

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    Package : libreoffice


    CVE ID : CVE-2021-25633 CVE-2021-25634



    Two security issues have been discovered in LibreOffice's support for digital signatures in ODF documents, which could result in incorrect signature indicators/timestamps being presented.



    For the stable distribution (bullseye), these problems have been fixed in version 1:7.0.4-4+deb11u1.



    We recommend that you upgrade your libreoffice packages.



    For the detailed security status of libreoffice please refer to its security tracker page at:


    Information on source package libreoffice



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