[IT-SecNots] [SECURITY] [DSA 4995-1] webkit2gtk security update

[Alberto Garcia <berto AT igalia.com>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4995-1                   security AT debian.org
https://www.debian.org/security/                           Alberto Garcia
October 29, 2021                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : webkit2gtk
CVE ID         : CVE-2021-30846 CVE-2021-30851 CVE-2021-42762

The following vulnerabilities have been discovered in the webkit2gtk
web engine:

CVE-2021-30846

    Sergei Glazunov discovered that processing maliciously crafted web
    content may lead to arbitrary code execution

CVE-2021-30851

    Samuel Gross discovered that processing maliciously crafted web
    content may lead to code execution

CVE-2021-42762

    An anonymous reporter discovered a limited Bubblewrap sandbox
    bypass that allows a sandboxed process to trick host processes
    into thinking the sandboxed process is not confined.

For the oldstable distribution (buster), these problems have been fixed
in version 2.34.1-1~deb10u1.

For the stable distribution (bullseye), these problems have been fixed in
version 2.34.1-1~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 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: debian-security-announce AT lists.debian.org
-----BEGIN PGP SIGNATURE-----
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=yfUq
-----END PGP SIGNATURE-----