KLA10952
Multiple vulnerabilities in Mozilla Thunderbird

Multiple serious vulnerabilities have been found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause a denial of service, obtain sensitive information and execute arbitrary code.

Below is a complete list of vulnerabilities

1. Errors in the handling of node adoption can be exploited for manipulating DOM events and removing audio elements;
2. An improper event handling on marquee elements can be exploited remotely to bypass security restrictions (Content Security Policy) and allow inline JavaScript;
3. Memory corruption at libGLES can be exploited remotely to cause a denial of service;
4. Use-after-free vulnerability can be exploited remotely to cause a denial of service when manipulating DOM subtrees in the Editor;
5. Errors in the handling of loading by SVG images can be exploited remotely to bypass security restrictions via using of data: URLs;
6. Cross-origin information leak in shared atoms can be exploited remotely to obtain sensitive information(for example, usernames embedded in JavaScript code);
7. A crash in EnumerateSubDocuments can be exploited remotely via adding or removing sub-documents to cause a denial of service;
8. Memory corruption vulnerabilities can be exploited remotely to execute arbitrary code.

NB: This vulnerability have no public CVSS rating so rating can be changed by the time.

NB: At this moment Mozilla just reserved CVE numbers for this vulnerabilities. Information can be changed soon.

Mozilla Thunderbird versions earlier than 45.6

Update to the latest version
Mozilla Thunderbird

MFSA

Public exploits exist for this vulnerability.