A webkit2gtk security update has been released for Arch Linux.

ASA-202011-28: webkit2gtk: arbitrary code execution

Arch Linux Security Advisory ASA-202011-28
=========================================
Severity: Medium
Date : 2020-11-26
CVE-ID : CVE-2020-9983 CVE-2020-13543 CVE-2020-13584
Package : webkit2gtk
Type : arbitrary code execution
Remote : Yes
Link :   https://security.archlinux.org/AVG-1291

Summary
======
The package webkit2gtk before version 2.30.3-1 is vulnerable to
arbitrary code execution.

Resolution
=========
Upgrade to 2.30.3-1.

# pacman -Syu "webkit2gtk>=2.30.3-1"

The problems have been fixed upstream in version 2.30.3.

Workaround
=========
None.

Description
==========
- CVE-2020-9983 (arbitrary code execution)

An out-of-bounds write issue was found in webkit2gtk before 2.30.3.
Processing maliciously crafted web content may have lead to code
execution.

- CVE-2020-13543 (arbitrary code execution)

A use after free issue was found in webkit2gtk before 2.30.3.
Processing maliciously crafted web content may lead to arbitrary code
execution.

- CVE-2020-13584 (arbitrary code execution)

A use after free issue was found in webkit2gtk before 2.30.3.
Processing maliciously crafted web content may have lead to arbitrary
code execution.

Impact
=====
A remote attacker might be able to execute arbitrary code via crafted
web content.

References
=========
  https://webkitgtk.org/security/WSA-2020-0008.html
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9983
  https://webkitgtk.org/security/WSA-2020-0009.html#CVE-2020-13543
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13584
  https://security.archlinux.org/CVE-2020-9983
  https://security.archlinux.org/CVE-2020-13543
  https://security.archlinux.org/CVE-2020-13584