[ASA-202011-28] webkit2gtk: arbitrary code execution

[Morten Linderud]

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
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