[DSA 6083-1] webkit2gtk security update

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Debian Security Advisory DSA-6083-1                   [email protected]
https://www.debian.org/security/                           Alberto Garcia
December 18, 2025                     https://www.debian.org/security/faq
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Package        : webkit2gtk
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 the oldstable distribution (bookworm), these problems have been fixed
in version 2.50.4-1~deb12u1.

For the stable distribution (trixie), these problems have been fixed in
version 2.50.4-1~deb13u1.

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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]
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