A webkit2gtk security update has been released for Arch Linux.

ASA-202103-24: webkit2gtk: multiple issues

Arch Linux Security Advisory ASA-202103-24
==========================================

Severity: High
Date : 2021-03-25
CVE-ID : CVE-2020-27918 CVE-2020-29623 CVE-2021-1765 CVE-2021-1789
CVE-2021-1799 CVE-2021-1801 CVE-2021-1870
Package : webkit2gtk
Type : multiple issues
Remote : Yes
Link :   https://security.archlinux.org/AVG-1721

Summary
=======

The package webkit2gtk before version 2.30.6-1 is vulnerable to
multiple issues including arbitrary code execution, access restriction
bypass, information disclosure and sandbox escape.

Resolution
==========

Upgrade to 2.30.6-1.

# pacman -Syu "webkit2gtk>=2.30.6-1"

The problems have been fixed upstream in version 2.30.6.

Workaround
==========

None.

Description
===========

- CVE-2020-27918 (arbitrary code execution)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. Processing maliciously crafted web content may
lead to arbitrary code execution.

- CVE-2020-29623 (information disclosure)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. “Clear History and Website Data” did not clear
the history in some circumstances.

- CVE-2021-1765 (sandbox escape)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. Maliciously crafted web content may violate
iframe sandboxing policy.

- CVE-2021-1789 (arbitrary code execution)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. Processing maliciously crafted web content may
lead to arbitrary code execution.

- CVE-2021-1799 (access restriction bypass)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. A malicious website may be able to access
restricted ports on arbitrary servers.

- CVE-2021-1801 (sandbox escape)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. Maliciously crafted web content may violate
iframe sandboxing policy.

- CVE-2021-1870 (arbitrary code execution)

A security issue was discovered in WebKitGTK before 2.30.6 and WPE
WebKit before 2.30.6. A remote attacker may be able to cause arbitrary
code execution. Apple is aware of a report that this issue may have
been actively exploited.

Impact
======

A remote attacker is able to use maliciously crafted web content to
execute arbitrary code or violate the iframe policy. A malicious server
could access restricted ports.

References
==========

  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2020-27918
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2020-29623
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2021-1765
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2021-1789
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2021-1799
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2021-1801
  https://webkitgtk.org/security/WSA-2021-0002.html#CVE-2021-1870
  https://security.archlinux.org/CVE-2020-27918
  https://security.archlinux.org/CVE-2020-29623
  https://security.archlinux.org/CVE-2021-1765
  https://security.archlinux.org/CVE-2021-1789
  https://security.archlinux.org/CVE-2021-1799
  https://security.archlinux.org/CVE-2021-1801
  https://security.archlinux.org/CVE-2021-1870