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