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Opera Multiple Denial of Service Vulnerabilities - June12 (Linux)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

3 years ago

Summary

The host is installed with Opera and is prone to multiple denial of service vulnerabilities.

Insight

Insight

- A denial of service via crafted characters in domain names. - A denial of service (application crash) via crafted WebGL content. - A denial of service (memory consumption or application hang) via an IFRAME element that uses the src='#' syntax to embed a parent document. - A denial of service (application hang) via JavaScript code that changes a form before submission. - A denial of service (application hang) via an absolutely positioned wrap=off TEXTAREA element located next to an 'overflow: auto' block element. - A denial of service (application crash) via a web page that contains invalid character encodings. - A denial of service (application crash) via a crafted web page that is not properly handled during a reload.

Affected Software

Affected Software

Opera version prior to 12.00 Beta on Linux

Solution

Solution

Upgrade to Opera version 12.00 Beta or later.

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1. Download Multipass

sudo snap install multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

3. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. If you don’t have it already, install Brew. Then, to install Multipass simply execute:

brew install --cask multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

2. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. Download the installer for Windows

Note: You need Windows 10 Pro/Enterprise/Education v 1803 or later, or any Windows 10 with VirtualBox

2. Ensure your network is private

Make sure your local network is designated as private, otherwise Windows prevents Multipass from starting.

3. Run the installer

You need to allow the installer to gain Administrator privileges.

4. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04

5. Log into the multipass instance

multipass shell mageni

6. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash