Multiple Vulnerabilities in Mozilla Products Could Allow for Arbitrary Code Execution

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Multiple vulnerabilities have been discovered in Mozilla Firefox, Firefox Extended Support Release (ESR) and Mozilla Thunderbird, the most severe of which could allow for arbitrary code execution.

Mozilla Firefox is a web browser used to access the Internet.
Mozilla Firefox ESR is a version of the web browser intended to be deployed in large organizations.
Mozilla Thunderbird is an email client.

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

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SolarWinds creates new software build system in wake of Sunburst attack

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SolarWinds became the poster child for attacks on software supply chains last year when a group of threat actors injected malicious code known as Sunburst into the company’s software development system. It was subsequently distributed through an upgrade to it Orion product to thousands of government and enterprise customers worldwide.

SolarWinds learned from the experience and has introduced new software development practices and technology to strengthen the integrity of its build environment. It includes what SolarWinds says is the first-of-its-kind “parallel build” process, where the software development takes place through multiple highly secure duplicate paths to establish a basis for integrity checks.

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