Mozilla Firefox/Thunderbird/Firefox ESR Window Handle Thread-Owned Memory Objects Cross-Domain input validation

Summaryinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox, Thunderbird and Firefox ESR. Affected by this vulnerability is an unknown functionality of the component Window Handle Thread-Owned Memory Objects. Executing a manipulation can lead to input validation (Cross-Domain). This vulnerability is registered as CVE-2019-11711. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox, Thunderbird and Firefox ESR (Web Browser) (affected version not known). It has been declared as critical. This vulnerability affects some unknown functionality of the component Window Handle Thread-Owned Memory Objects. The manipulation with an unknown input leads to a input validation vulnerability (Cross-Domain). The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

When an inner window is reused, it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use document.domain to relax their origin security. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

The weakness was published 07/23/2019 (Website). The advisory is available at security.gentoo.org. This vulnerability was named CVE-2019-11711 since 05/03/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/26/2025).

The vulnerability scanner Nessus provides a plugin with the ID 250027 (Linux Distros Unpatched Vulnerability : CVE-2019-11711), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (250027). Similar entries are available at VDB-138488, VDB-138489, VDB-138491 and VDB-138492. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox
• Firefox ESR
• Thunderbird

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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