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-4414 advisory.
- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4414-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort December 18, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------
Package : webkit2gtk Version : 2.50.4-1~deb11u1 CVE ID : CVE-2025-14174 CVE-2025-43501 CVE-2025-43529 CVE-2025-43531 CVE-2025-43535 CVE-2025-43536 CVE-2025-43541
The following vulnerabilities have been discovered in the WebKitGTK web engine:
CVE-2025-14174
Apple and the Google Threat Analysis Group discovered that processing maliciously crafted web content may lead to memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26.
CVE-2025-43529 was also issued in response to this report.
CVE-2025-43501
Hossein Lotfi discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2025-43529
The Google Threat Analysis Group discovered that processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26.
CVE-2025-14174 was also issued in response to this report.
CVE-2025-43531
Phil Pizlo discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2025-43535
Google Big Sleep / Nan Wang discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2025-43536
Nan Wang discovered that processing maliciously crafted web content may lead to an unexpected process crash.
CVE-2025-43541
Hossein Lotfi 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 2.50.4-1~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
File Name: debian_DLA-4414.nasl
Agent: unix
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
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:F/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: Exploits are available
Patch Publication Date: 12/18/2025
Vulnerability Publication Date: 12/10/2025
CISA Known Exploited Vulnerability Due Dates: 1/2/2026, 1/5/2026