The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:1766 advisory.

    LibreOffice is an open source, community-developed office productivity suite. It includes key desktop     applications, such as a word processor, a spreadsheet, a presentation manager, a formula editor, and a     drawing program. LibreOffice replaces OpenOffice and provides a similar but enhanced and extended office     suite.

    Security Fix(es):

    * libreoffice: Content Manipulation with Double Certificate Attack (CVE-2021-25633)

    * libreoffice: Timestamp Manipulation with Signature Wrapping (CVE-2021-25634)

    * libreoffice: Content Manipulation with Certificate Validation Attack (CVE-2021-25635)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2022:1766 advisory.

  - LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual     aids that no alteration of the document occurred since the last signing and that the signature is valid.
    An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally     signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the     document to combine multiple certificate data, which when opened caused LibreOffice to display a validly     signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document     Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2. (CVE-2021-25633)

  - LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual     aids that no alteration of the document occurred since the last signing and that the signature is valid.
    An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally     signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly     present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation     LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2. (CVE-2021-25634)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-4988 advisory.

    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: https://security-tracker.debian.org/tracker/libreoffice

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5153-1 advisory.

    It was discovered that LibreOffice incorrectly handled digital signatures. An attacker could possibly use     this issue to create a specially crafted document that would display a validly signed indicator, contrary     to expectations.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual     aids that no alteration of the document occurred since the last signing and that the signature is valid.
    An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally     signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly     present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation     LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2. (CVE-2021-25634)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:1766 advisory.

  - LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual     aids that no alteration of the document occurred since the last signing and that the signature is valid.
    An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally     signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly     present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation     LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2. (CVE-2021-25634)

  - LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual     aids that no alteration of the document occurred since the last signing and that the signature is valid.
    An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally     signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the     document to combine multiple certificate data, which when opened caused LibreOffice to display a validly     signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document     Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2. (CVE-2021-25633)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2022:1766 advisory.

  - libreoffice: Content Manipulation with Double Certificate Attack (CVE-2021-25633)

  - libreoffice: Timestamp Manipulation with Signature Wrapping (CVE-2021-25634)

  - libreoffice: Content Manipulation with Certificate Validation Attack (CVE-2021-25635)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-1766 advisory.

    - Resolves: rhbz#2013858 CVE-2021-25633
    - Resolves: rhbz#2014215 CVE-2021-25634
    - Resolves: rhbz#2014209 CVE-2021-25635

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
161046	RHEL 8 : libreoffice (RHSA-2022:1766)	Nessus	Red Hat Local Security Checks	5/11/2022	11/7/2024	high
161111	AlmaLinux 8 : libreoffice (ALSA-2022:1766)	Nessus	Alma Linux Local Security Checks	5/12/2022	5/12/2022	high
154194	Debian DSA-4988-1 : libreoffice - security update	Nessus	Debian Local Security Checks	10/17/2021	1/24/2025	high
155672	Ubuntu 20.04 LTS : LibreOffice vulnerabilities (USN-5153-1)	Nessus	Ubuntu Local Security Checks	11/23/2021	8/27/2024	high
223708	Linux Distros Unpatched Vulnerability : CVE-2021-25634	Nessus	Misc.	3/4/2025	3/4/2025	high
167826	Rocky Linux 8 : libreoffice (RLSA-2022:1766)	Nessus	Rocky Linux Local Security Checks	11/17/2022	11/6/2023	high
160909	CentOS 8 : libreoffice (CESA-2022:1766)	Nessus	CentOS Local Security Checks	5/10/2022	5/10/2022	high
161277	Oracle Linux 8 : libreoffice (ELSA-2022-1766)	Nessus	Oracle Linux Local Security Checks	5/18/2022	11/1/2024	high

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