- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3915-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                   Bastien Roucariès
October 12, 2024                              https://wiki.debian.org/LTS
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Package        : libreoffice
Version        : 1:7.0.4-4+deb11u11
CVE ID         : CVE-2024-7788

Various file formats are based on the zip file format. In cases of
corruption of the underlying zip's central directory,
LibreOffice offers a "repair mode" which will attempt to
recover the zip file structure by scanning for secondary local
file headers in the zip to reconstruct the document.

Prior to this fix, in the case of digitally signed zip files,
an attacker could construct a document which, when repaired,
reported a signature status not valid for the recovered file.

Previously if verification failed the user could choose
to ignore the failure and enable the macros anyway.

Repair document mode has to be inherently tolerant,
so now in fixed versions all signatures are implied to
be invalid in recovery mode.

For Debian 11 bullseye, this problem has been fixed in version
1:7.0.4-4+deb11u11.

We recommend that you upgrade your libreoffice packages.

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

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

Debian LTS: DLA-3915-1: libreoffice Security Advisory Updates

October 12, 2024
Various file formats are based on the zip file format

Summary

Prior to this fix, in the case of digitally signed zip files,
an attacker could construct a document which, when repaired,
reported a signature status not valid for the recovered file.

Previously if verification failed the user could choose
to ignore the failure and enable the macros anyway.

Repair document mode has to be inherently tolerant,
so now in fixed versions all signatures are implied to
be invalid in recovery mode.

For Debian 11 bullseye, this problem has been fixed in version
1:7.0.4-4+deb11u11.

We recommend that you upgrade your libreoffice packages.

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

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


Severity
Package : libreoffice
Version : 1:7.0.4-4+deb11u11
CVE ID : CVE-2024-7788

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