The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:0134 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * firefox: Use-after-free when breaking lines in text (CVE-2025-0238)

    * firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)

    * firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

    * firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)

    * firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

    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.

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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:0138 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * firefox: Use-after-free when breaking lines in text (CVE-2025-0238)

    * firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)

    * firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

    * firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)

    * firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

    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.

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 version of Thunderbird installed on the remote Windows host is prior to 134.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-04 advisory.

  - Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of     memory corruption and we presume that with enough effort some of these could have been exploited to run     arbitrary code. (CVE-2025-0247)

  - Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5,     Thunderbird 115.18, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we     presume that with enough effort some of these could have been exploited to run arbitrary code.
    (CVE-2025-0242)

  - The Matrix specification demands homeservers to perform validation of the server-name and media-id     components of MXC URIs with the intent to prevent path traversal. However, it is not mentioned that a     similar check must also be performed on the client to prevent client-side path traversal. matrix-js-sdk     fails to perform this validation. (CVE-2024-50336)

  - The WebChannel API, which is used to transport various information across processes, did not check the     sending principal but rather accepted the principal being sent. This could have led to privilege     escalation attacks. (CVE-2025-0237)

  - Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to     a potentially exploitable crash. (CVE-2025-0238)

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

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:0167 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

    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.

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 Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:0133 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * firefox: Use-after-free when breaking lines in text (CVE-2025-0238)

    * firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)

    * firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

    * firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)

    * firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

    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.

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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-0080 advisory.

    [128.6.0-1.0.1]
    - Fix firefox-oracle-default-prefs.js for new nss [Orabug: 37079773]
    - Add firefox-oracle-default-prefs.js and remove the corresponding Red Hat file

    [128.6.0]
    - Add debranding patches (Mustafa Gezen)
    - Add OpenELA default preferences (Louis Abel)

    [128.6.0-1]
    - Update to 128.6.0 build1

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.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4012 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4012-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     January 11, 2025                              https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : thunderbird     Version        : 1:128.6.0esr-1~deb11u1     CVE ID         : CVE-2024-50336 CVE-2025-0237 CVE-2025-0238 CVE-2025-0239                      CVE-2025-0240 CVE-2025-0241 CVE-2025-0242 CVE-2025-0243

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code.

    For Debian 11 bullseye, these problems have been fixed in version     1:128.6.0esr-1~deb11u1.

    We recommend that you upgrade your thunderbird packages.

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

    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

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 Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-91031f9df9 advisory.

    Update to 128.6.0

    * https://www.thunderbird.net/en-US/thunderbird/128.6.0esr/releasenotes/
    * https://www.mozilla.org/en-US/security/advisories/mfsa2025-04/

Tenable has extracted the preceding description block directly from the Fedora 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 Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:0281 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

    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.

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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:0080 advisory.

    * firefox: Use-after-free when breaking lines in text (CVE-2025-0238)
      * firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)
      * firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and     Thunderbird 128.6 (CVE-2025-0243)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19,     Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)
      * firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)
      * firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

Tenable has extracted the preceding description block directly from the AlmaLinux 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
213614	RHEL 8 : firefox (RHSA-2025:0134)	Nessus	Red Hat Local Security Checks	1/9/2025	2/6/2025	high
213618	RHEL 9 : firefox (RHSA-2025:0138)	Nessus	Red Hat Local Security Checks	1/9/2025	2/6/2025	high
213633	Mozilla Thunderbird < 134.0	Nessus	Windows	1/9/2025	1/16/2025	medium
213636	RHEL 9 : thunderbird (RHSA-2025:0167)	Nessus	Red Hat Local Security Checks	1/9/2025	1/9/2025	medium
213637	RHEL 8 : firefox (RHSA-2025:0133)	Nessus	Red Hat Local Security Checks	1/9/2025	2/6/2025	high
213718	Oracle Linux 9 : firefox (ELSA-2025-0080)	Nessus	Oracle Linux Local Security Checks	1/10/2025	2/6/2025	high
213985	Debian dla-4012 : thunderbird - security update	Nessus	Debian Local Security Checks	1/11/2025	1/31/2025	medium
214055	Fedora 40 : thunderbird (2025-91031f9df9)	Nessus	Fedora Local Security Checks	1/14/2025	1/31/2025	high
214062	RHEL 8 : thunderbird (RHSA-2025:0281)	Nessus	Red Hat Local Security Checks	1/14/2025	1/14/2025	medium
213725	AlmaLinux 9 : firefox (ALSA-2025:0080)	Nessus	Alma Linux Local Security Checks	1/10/2025	2/6/2025	high

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