The remote CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5475 advisory.

  - During the worker lifecycle, a use-after-free condition could have occured, which could have led to a     potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and     Thunderbird < 115.0.1. (CVE-2023-3600)

  - A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5176)

  - Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium     security severity: High) (CVE-2023-5217)

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.

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

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

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0238 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2023-4863:
      Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a     remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security     severity: Critical)

      CVE-2023-3600:
      During the worker lifecycle, a use-after-free condition could have occured, which could have led to a     potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and     Thunderbird < 115.0.1.

      CVE-2023-5169:
      A compromised content process could have provided malicious data in a PathRecording resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

      CVE-2023-5171:
      During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

      CVE-2023-5176:
      Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3.

      CVE-2023-5217:
      Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx     1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium     security severity: High)

Tenable has extracted the preceding description block directly from the Tencent 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 MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6492:28 advisory.

    * firefox: use-after-free in workers (CVE-2023-3600)
      * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)
      * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)
      * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)
      * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 Firefox installed on the remote macOS or Mac OS X host is prior to 118.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-41 advisory.

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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-2023-5176)

  - A compromised content process could have provided malicious data to <code>FilterNodeD2D1</code> resulting     in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. This bug     only affects Firefox on Windows. Other operating systems are unaffected. (CVE-2023-5168)

  - A compromised content process could have provided malicious data in a <code>PathRecording</code> resulting     in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process.
    (CVE-2023-5169)

  - In canvas rendering, a compromised content process could have caused a surface to change unexpectedly,     leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox     escape if the correct data was leaked. (CVE-2023-5170)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. (CVE-2023-5171)

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 115.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-43 advisory.

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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-2023-5176)

  - A compromised content process could have provided malicious data to <code>FilterNodeD2D1</code> resulting     in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. This bug     only affects Firefox on Windows. Other operating systems are unaffected. (CVE-2023-5168)

  - A compromised content process could have provided malicious data in a <code>PathRecording</code> resulting     in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process.
    (CVE-2023-5169)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. (CVE-2023-5171)

  - If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently     freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. This bug only     affects Firefox on Windows when run in non-standard configurations (such as using <code>runas</code>).
    Other operating systems are unaffected. (CVE-2023-5174)

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 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-587dc80bb1 advisory.

    - Updated to latest upstream (118.0)

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 SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3837-1 advisory.

  - A compromised content process could have provided malicious data to `FilterNodeD2D1` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5168)

  - A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

  - If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently     freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. *This bug only     affects Firefox on Windows when run in non-standard configurations (such as using `runas`). Other     operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5174)

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5176)

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-2023:5436 advisory.

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

    This update upgrades Firefox to version 115.3.1 ESR.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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-2023:5430 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 115.3.1.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5477 advisory.

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

    This update upgrades Firefox to version 115.3.1 ESR.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:5475 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 115.3.1.

    Security Fix(es):

    * firefox: use-after-free in workers (CVE-2023-3600)

    * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)

    * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)

    * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)

    * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

    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 MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6514:39 advisory.

    * firefox: use-after-free in workers (CVE-2023-3600)
      * Mozilla: Out-of-bounds write in PathOps (CVE-2023-5169)
      * Mozilla: Use-after-free in Ion Compiler (CVE-2023-5171)
      * Mozilla: Memory safety bugs fixed in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3     (CVE-2023-5176)
      * libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2023:5433 advisory.

  - During the worker lifecycle, a use-after-free condition could have occured, which could have led to a     potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and     Thunderbird < 115.0.1. (CVE-2023-3600)

  - A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5176)

  - Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium     security severity: High) (CVE-2023-5217)

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
187228	CentOS 7 : thunderbird (RHSA-2023:5475)	Nessus	CentOS Local Security Checks	12/22/2023	12/22/2023	critical
245665	Linux Distros Unpatched Vulnerability : CVE-2023-5171	Nessus	Misc.	8/8/2025	8/8/2025	medium
239741	TencentOS Server 3: firefox (TSSA-2023:0238)	Nessus	Tencent Local Security Checks	6/16/2025	11/23/2025	critical
292894	MiracleLinux 9 : thunderbird-115.3.1-1.el9.ML.1 (AXSA:2023-6492:28)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
181876	Mozilla Firefox < 118.0	Nessus	MacOS X Local Security Checks	9/26/2023	11/18/2025	critical
181881	Mozilla Thunderbird < 115.3	Nessus	Windows	9/26/2023	11/18/2025	critical
182082	Fedora 38 : firefox (2023-587dc80bb1)	Nessus	Fedora Local Security Checks	9/28/2023	11/14/2024	critical
182120	SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2023:3837-1)	Nessus	SuSE Local Security Checks	9/28/2023	10/6/2023	critical
182539	RHEL 8 : firefox (RHSA-2023:5436)	Nessus	Red Hat Local Security Checks	10/4/2023	11/7/2024	critical
182553	RHEL 8 : thunderbird (RHSA-2023:5430)	Nessus	Red Hat Local Security Checks	10/4/2023	11/7/2024	critical
182594	RHEL 7 : firefox (RHSA-2023:5477)	Nessus	Red Hat Local Security Checks	10/5/2023	11/7/2024	critical
182623	RHEL 7 : thunderbird (RHSA-2023:5475)	Nessus	Red Hat Local Security Checks	10/5/2023	11/7/2024	critical
293509	MiracleLinux 7 : firefox-115.3.1-1.0.1.el7.AXS7 (AXSA:2023-6514:39)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
190211	CentOS 8 : firefox (CESA-2023:5433)	Nessus	CentOS Local Security Checks	2/8/2024	2/8/2024	critical
190759	GLSA-202402-25 : Mozilla Thunderbird: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2/20/2024	2/20/2024	critical

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