Subject: [ASA-202106-45] opera: multiple issues

Arch Linux Security Advisory ASA-202106-45
==========================================

Severity: Critical
Date    : 2021-06-22
CVE-ID  : CVE-2021-30544 CVE-2021-30545 CVE-2021-30546 CVE-2021-30547
          CVE-2021-30548 CVE-2021-30549 CVE-2021-30550 CVE-2021-30551
          CVE-2021-30552 CVE-2021-30553
Package : opera
Type    : multiple issues
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2059

Summary
=======

The package opera before version 77.0.4054.90-1 is vulnerable to
multiple issues including arbitrary code execution and incorrect
calculation.

Resolution
==========

Upgrade to 77.0.4054.90-1.

# pacman -Syu "opera>=77.0.4054.90-1"

The problems have been fixed upstream in version 77.0.4054.90.

Workaround
==========

None.

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

- CVE-2021-30544 (arbitrary code execution)

A use after free security issue has been found in the BFCache component
of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30545 (arbitrary code execution)

A use after free security issue has been found in the Extensions
component of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30546 (arbitrary code execution)

A use after free security issue has been found in the Autofill
component of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30547 (arbitrary code execution)

An out of bounds write in ANGLE could have allowed an attacker to
corrupt memory leading to a potentially exploitable crash in the
Chromium browser engine before version 91.0.4472.101, Firefox before
version 90 and Thunderbird before version 78.12.

- CVE-2021-30548 (arbitrary code execution)

A use after free security issue has been found in the Loader component
of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30549 (arbitrary code execution)

A use after free security issue has been found in the Spell check
component of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30550 (arbitrary code execution)

A use after free security issue has been found in the Accessibility
component of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30551 (incorrect calculation)

A type confusion security issue has been found in the V8 component of
the Chromium browser before version 91.0.4472.101. Google is aware that
an exploit for CVE-2021-30551 exists in the wild.

- CVE-2021-30552 (arbitrary code execution)

A use after free security issue has been found in the Extensions
component of the Chromium browser before version 91.0.4472.101.

- CVE-2021-30553 (arbitrary code execution)

A use after free security issue has been found in the Network service
component of the Chromium browser before version 91.0.4472.101.

Impact
======

A remote attacker could execute arbitrary code through a crafted web
page or extension. Google is aware that an exploit for one of the
security issues exists in the wild.

References
==========

https://blogs.opera.com/desktop/changelog-for-77/
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html
https://crbug.com/1212618
https://crbug.com/1201031
https://crbug.com/1206911
https://crbug.com/1210414
https://www.mozilla.org/security/advisories/mfsa2021-28/
https://www.mozilla.org/security/advisories/mfsa2021-30/
https://bugzilla.mozilla.org/show_bug.cgi?id=1715766
https://crbug.com/1210487
https://crbug.com/1212498
https://crbug.com/1212500
https://crbug.com/1216437
https://crbug.com/1200679
https://crbug.com/1209769
https://security.archlinux.org/CVE-2021-30544
https://security.archlinux.org/CVE-2021-30545
https://security.archlinux.org/CVE-2021-30546
https://security.archlinux.org/CVE-2021-30547
https://security.archlinux.org/CVE-2021-30548
https://security.archlinux.org/CVE-2021-30549
https://security.archlinux.org/CVE-2021-30550
https://security.archlinux.org/CVE-2021-30551
https://security.archlinux.org/CVE-2021-30552
https://security.archlinux.org/CVE-2021-30553