Debian dla-4399 : gir1.2-javascriptcoregtk-4.0 - security update

high Nessus Plugin ID 278083

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4399 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4399-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort December 10, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : webkit2gtk Version : 2.50.3-1~deb11u1 CVE ID : CVE-2025-13947 CVE-2025-43421 CVE-2025-43458 CVE-2025-66287

The following vulnerabilities have been discovered in the WebKitGTK web engine:

CVE-2025-13947

Janet Black discovered that a website may be able to exfiltrate sensitive system information.

CVE-2025-43421

Nan Wang discovered that processing maliciously crafted web content may lead to an unexpected process crash.

CVE-2025-43458

Phil Beauvoir discovered that processing maliciously crafted web content may lead to an unexpected process crash.

CVE-2025-66287

Stanislav Fort discovered that processing maliciously crafted web content may lead to an unexpected process crash.

For Debian 11 bullseye, these problems have been fixed in version 2.50.3-1~deb11u1.

We recommend that you upgrade your webkit2gtk packages.

For the detailed security status of webkit2gtk please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/webkit2gtk

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.

Solution

Upgrade the gir1.2-javascriptcoregtk-4.0 packages.

Plugin Details

Severity: High

ID: 278083

File Name: debian_DLA-4399.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/10/2025

Updated: 12/10/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-66287

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libjavascriptcoregtk-4.0-18, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:webkit2gtk-driver, p-cpe:/a:debian:debian_linux:gir1.2-webkit2-4.0, p-cpe:/a:debian:debian_linux:libwebkit2gtk-4.0-dev, p-cpe:/a:debian:debian_linux:libwebkit2gtk-4.0-doc, p-cpe:/a:debian:debian_linux:gir1.2-javascriptcoregtk-4.0, p-cpe:/a:debian:debian_linux:libjavascriptcoregtk-4.0-bin, p-cpe:/a:debian:debian_linux:libjavascriptcoregtk-4.0-dev, p-cpe:/a:debian:debian_linux:libwebkit2gtk-4.0-37

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/10/2025

Vulnerability Publication Date: 11/4/2025

Reference Information

CVE: CVE-2025-13947, CVE-2025-43421, CVE-2025-43458, CVE-2025-66287

Detections

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