A wpewebkit security update has been released for Debian GNU/Linux 11 to address an issue that may lead to arbitrary code execution.

DSA 4976-1: wpewebkit security update

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Debian Security Advisory DSA-4976-1 security@debian.org
  https://www.debian.org/security/ Alberto Garcia
September 20, 2021   https://www.debian.org/security/faq
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Package : wpewebkit
CVE ID : CVE-2021-30858

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

CVE-2021-30858
An anonymous researcher 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 actively
exploited.

For the stable distribution (bullseye), this problem has been fixed in
version 2.32.4-1~deb11u1.

We recommend that you upgrade your wpewebkit packages.

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

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/