A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6. Processing maliciously crafted web content may lead to memory corruption.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:22789 advisory.

    * webkit: WebKitGTK / WPE WebKit: Out-of-bounds read and integer underflow vulnerability leading to DoS     (CVE-2025-13502)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2023-43000)
      * webkitgtk: A website may exfiltrate image data cross-origin (CVE-2025-43392)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43419)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43425)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43427)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43429)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43430)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43431)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43432)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43434)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43440)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43443)
      * webkitgtk: A malicious website may exfiltrate data cross-origin (CVE-2025-43480)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43421)
      * webkit: WebKitGTK: Remote user-assisted information disclosure via file drag-and-drop (CVE-2025-13947)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43458)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-66287)

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.

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:22789 advisory.

    * webkit: WebKitGTK / WPE WebKit: Out-of-bounds read and integer underflow vulnerability leading to DoS     (CVE-2025-13502)

    * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2023-43000)

    * webkitgtk: A website may exfiltrate image data cross-origin (CVE-2025-43392)

    * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43419)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43425)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43427)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43429)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43430)

    * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43431)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43432)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43434)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43440)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43443)

    * webkitgtk: A malicious website may exfiltrate data cross-origin (CVE-2025-43480)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43421)

    * webkit: WebKitGTK: Remote user-assisted information disclosure via file drag-and-drop (CVE-2025-13947)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43458)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-66287)

Tenable has extracted the preceding description block directly from the RockyLinux 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-2025:22790 advisory.

    * webkit: WebKitGTK / WPE WebKit: Out-of-bounds read and integer underflow vulnerability leading to DoS     (CVE-2025-13502)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2023-43000)
      * webkitgtk: A website may exfiltrate image data cross-origin (CVE-2025-43392)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43419)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43425)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43427)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43429)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43430)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2025-43431)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43432)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2025-43434)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43440)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43443)
      * webkitgtk: A malicious website may exfiltrate data cross-origin (CVE-2025-43480)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43421)
      * webkit: WebKitGTK: Remote user-assisted information disclosure via file drag-and-drop (CVE-2025-13947)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-43458)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2025-66287)

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.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-22790 advisory.

    [2.50.3-1]
    - Update to 2.50.3

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-22789 advisory.

    [2.50.3-1]
    - Update to 2.50.3

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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-4fc934f283 advisory.

     * Prevent unsafe URI schemes from participating in media playback.
     * Make jsc_value_array_buffer_get_data() function introspectable.
     * Fix logging in to Google accounts that have a WebAuthn second factor configured.
     * Fix loading webkit://gpu when there are no threads configured for GPU rendering.
     * Fix rendering gradients that use the CSS hue interpolation method.
     * Fix pasting image data from the clipboard.
     * Fix font-family selection when the font name contains spaces.
     * Fix capturing canvas snapshots in the Web Inspector.
     * Fix several crashes and rendering issues.
     * 2.50.2 CVE fixes: CVE-2023-43000, CVE-2025-43392, CVE-2025-43419, CVE-2025-43425, CVE-2025-43427,     CVE-2025-43429, CVE-2025-43430, CVE-2025-43431, CVE-2025-43432, CVE-2025-43434, CVE-2025-43440,     CVE-2025-43443, CVE-2025-43480
     * This Fedora update additionally fixes CVE-2025-43421 via a downstream patch


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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-6f3e9e3af6 advisory.

     * Prevent unsafe URI schemes from participating in media playback.
     * Make jsc_value_array_buffer_get_data() function introspectable.
     * Fix logging in to Google accounts that have a WebAuthn second factor configured.
     * Fix loading webkit://gpu when there are no threads configured for GPU rendering.
     * Fix rendering gradients that use the CSS hue interpolation method.
     * Fix pasting image data from the clipboard.
     * Fix font-family selection when the font name contains spaces.
     * Fix capturing canvas snapshots in the Web Inspector.
     * Fix several crashes and rendering issues.
     * 2.50.2 CVE fixes: CVE-2023-43000, CVE-2025-43392, CVE-2025-43419, CVE-2025-43425, CVE-2025-43427,     CVE-2025-43429, CVE-2025-43430, CVE-2025-43431, CVE-2025-43432, CVE-2025-43434, CVE-2025-43440,     CVE-2025-43443, CVE-2025-43480
     * This Fedora update additionally fixes CVE-2025-43421 via a downstream patch

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

  - A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura     13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6. Processing maliciously crafted web content may lead to memory     corruption. (CVE-2023-43000)

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

ID	Name	Product	Family	Severity
277925	AlmaLinux 8 : webkit2gtk3 (ALSA-2025:22789)	Nessus	Alma Linux Local Security Checks	high
277884	RockyLinux 8 : webkit2gtk3 (RLSA-2025:22789)	Nessus	Rocky Linux Local Security Checks	high
277842	AlmaLinux 9 : webkit2gtk3 (ALSA-2025:22790)	Nessus	Alma Linux Local Security Checks	high
277789	Oracle Linux 9 : webkit2gtk3 (ELSA-2025-22790)	Nessus	Oracle Linux Local Security Checks	high
277788	Oracle Linux 8 : webkit2gtk3 (ELSA-2025-22789)	Nessus	Oracle Linux Local Security Checks	high
277026	Fedora 42 : webkitgtk (2025-4fc934f283)	Nessus	Fedora Local Security Checks	critical
276699	Fedora 43 : webkitgtk (2025-6f3e9e3af6)	Nessus	Fedora Local Security Checks	critical
276570	Linux Distros Unpatched Vulnerability : CVE-2023-43000	Nessus	Misc.	high

Detections

Analytics

CVE-2023-43000

high

Tenable Plugins

high

high

high

high

high

critical

critical

high