CVE-2022-3155 Security feature bypass in Thunderbird

High 7.8 Published Updated

Thunderbird fails to set macOS quarantine attributes on email attachments, allowing malicious applications to execute without user confirmation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-3155?

CVE-2022-3155 is a high-severity vulnerability in Mozilla Thunderbird, published on 22 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

When saving or opening an email attachment on macOS, Thunderbird did not set attribute com.apple.quarantine on the received file. If the received file was an application and the user attempted to open it, then the application was started immediately without asking the user to confirm. This vulnerability affects Thunderbird < 102.3.

Weakness: CWE-276

Which versions are affected by CVE-2022-3155?

It affects 1 product.

Products include Mozilla Thunderbird.

How do I fix CVE-2022-3155?

Upgrade to a fixed version.

Is CVE-2022-3155 being exploited?

There is no known exploitation of CVE-2022-3155 in the wild and no public exploit code.

All Mozilla Thunderbird vulnerabilities

Sources

Also known as GHSA-6gfq-p2cr-3q5j.

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