The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3562-1 advisory.

    Firefox was updated to Extended Support Release 115.2.0 ESR (MFSA 2023-36) (bsc#1214606).

    - CVE-2023-4574: Fixed memory corruption in IPC ColorPickerShownCallback (bmo#1846688)
    - CVE-2023-4575: Fixed memory corruption in IPC FilePickerShownCallback  (bmo#1846689)
    - CVE-2023-4576: Fixed integer Overflow in RecordedSourceSurfaceCreation (bmo#1846694)
    - CVE-2023-4577: Fixed memory corruption in JIT UpdateRegExpStatics (bmo#1847397)
    - CVE-2023-4051: Fixed full screen notification obscured by file open dialog (bmo#1821884)
    - CVE-2023-4578: Fixed Out of Memory Exception in SpiderMonkey could have triggered an (bmo#1839007)
    - CVE-2023-4053: Fixed full screen notification obscured by external program (bmo#1839079)
    - CVE-2023-4580: Fixed push notifications saved to disk unencrypted (bmo#1843046)
    - CVE-2023-4581: Fixed XLL file extensions downloadable without warnings (bmo#1843758)
    - CVE-2023-4582: Fixed buffer Overflow in WebGL glGetProgramiv (bmo#1773874)
    - CVE-2023-4583: Fixed browsing Context potentially not cleared when closing Private Window (bmo#1842030)
    - CVE-2023-4584: Fixed memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2,     Thunderbird 102.15, and Thunderbird 115.2  (bmo#1843968, bmo#1845205, bmo#1846080, bmo#1846526,     bmo#1847529)
    - CVE-2023-4585: Fixed memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird     115.2(bmo#1751583, bmo#1833504, bmo#1841082, bmo#1847904, bmo#1848999).

Tenable has extracted the preceding description block directly from the SUSE 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 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-2023:0187 advisory.

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

      CVE-2023-4051:
      A website could have obscured the full screen notification by using the file open dialog. This could     have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116,     Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4053:
      A website could have obscured the full screen notification by using a URL with a scheme handled by an     external program, such as a mailto URL. This could have led to user confusion and possible spoofing     attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4573:
      When receiving rendering data over IPC mStream could have been destroyed when initialized, which could     have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox <     117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4574:
      When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4575:
      When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4577:
      When UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage     collected prior to entering the function, which could potentially have led to an exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4578:
      When calling JS::CheckRegExpSyntax a Syntax Error could have been set which would end in calling     convertToRuntimeErrorAndClear. A path in the function could attempt to allocate memory when none is     available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax     Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4580:
      Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing     the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and     Thunderbird < 115.2.

      CVE-2023-4581:
      Excel .xll add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed     them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox <     117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4583:
      When checking if the Browsing Context had been discarded in HttpBaseChannel, if the load group was not     available then it was assumed to have already been discarded which was not always the case for private     channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR <     115.2, and Thunderbird < 115.2.

      CVE-2023-4584:
      Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14,     and Thunderbird 115.1. 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 < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

      CVE-2023-4585:
      Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. 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 < 117, Firefox ESR < 115.2, and     Thunderbird < 115.2.

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

  - When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could     have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks     finished. This could have led to a use-after-free causing a potentially exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and     Thunderbird < 115.2. (CVE-2023-4575)

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

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2023-6389:32 advisory.

    * Mozilla: Memory corruption in IPC CanvasTranslator (CVE-2023-4573)
      * Mozilla: Memory corruption in IPC ColorPickerShownCallback (CVE-2023-4574)
      * Mozilla: Memory corruption in IPC FilePickerShownCallback (CVE-2023-4575)
      * Mozilla: Memory corruption in JIT UpdateRegExpStatics (CVE-2023-4577)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird     102.15, and Thunderbird 115.2 (CVE-2023-4584)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2     (CVE-2023-4585)
      * Mozilla: Full screen notification obscured by file open dialog (CVE-2023-4051)
      * Mozilla: Full screen notification obscured by external program (CVE-2023-4053)
      * Mozilla: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception     (CVE-2023-4578)
      * Mozilla: Push notifications saved to disk unencrypted (CVE-2023-4580)
      * Mozilla: XLL file extensions were downloadable without warnings (CVE-2023-4581)
      * Mozilla: Browsing Context potentially not cleared when closing Private Window (CVE-2023-4583)

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 MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6392:33 advisory.

    * Mozilla: Memory corruption in IPC CanvasTranslator (CVE-2023-4573)
      * Mozilla: Memory corruption in IPC ColorPickerShownCallback (CVE-2023-4574)
      * Mozilla: Memory corruption in IPC FilePickerShownCallback (CVE-2023-4575)
      * Mozilla: Memory corruption in JIT UpdateRegExpStatics (CVE-2023-4577)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird     102.15, and Thunderbird 115.2 (CVE-2023-4584)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2     (CVE-2023-4585)
      * Mozilla: Full screen notification obscured by file open dialog (CVE-2023-4051)
      * Mozilla: Full screen notification obscured by external program (CVE-2023-4053)
      * Mozilla: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception     (CVE-2023-4578)
      * Mozilla: Push notifications saved to disk unencrypted (CVE-2023-4580)
      * Mozilla: XLL file extensions were downloadable without warnings (CVE-2023-4581)
      * Mozilla: Browsing Context potentially not cleared when closing Private Window (CVE-2023-4583)

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 AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1785560172 advisory.

  - Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a     revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to     102.7.0 were affected by this bug. This vulnerability affects Thunderbird < 102.7.1. (CVE-2023-0430)

  - If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to     process and display the message, which could cause Thunderbird's user interface to lock up and no longer     respond to the user's actions. An attacker could send a crafted message with this structure to attempt a     DoS attack. This vulnerability affects Thunderbird < 102.8. (CVE-2023-0616)

  - Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially     exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10.
    (CVE-2023-1945)

  - Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain     MIMEs containing file URLs as being dragged a website could arbitrarily read a file via a call to     `DataTransfer.setData`. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird <     102.7. (CVE-2023-23598)

  - When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab     to crash. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
    (CVE-2023-25742)

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
181264	SUSE SLES15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2023:3562-1)	Nessus	SuSE Local Security Checks	9/12/2023	6/26/2026	high
190759	GLSA-202402-25 : Mozilla Thunderbird: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2/20/2024	2/20/2024	critical
238866	TencentOS Server 3: firefox (TSSA-2023:0187)	Nessus	Tencent Local Security Checks	6/16/2025	11/20/2025	high
247562	Linux Distros Unpatched Vulnerability : CVE-2023-4575	Nessus	Misc.	8/10/2025	7/25/2026	medium
292311	MiracleLinux 9 : firefox-102.15.0-1.el9.ML.1 (AXSA:2023-6389:32)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high
293146	MiracleLinux 7 : firefox-102.15.0-1.0.1.el7.AXS7 (AXSA:2023-6392:33)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high
360088	AlmaLinux 9.2 [TuxCare] Security Update: thunderbird Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1785560172)	Nessus	Alma Linux Local Security Checks	10/1/2026	10/22/2026	critical

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