KLA11184
Multiple vulnerabilities in Mozilla Firefox and Firefox ESR

Multiple serious vulnerabilities have been found in Mozilla Firefox and Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to cause a denial of service, spoof user interface, obtain sensitive information, execute arbitrary code, perform cross-site scripting attacks, bypass security restrictions and gain privileges.

1. Multiple use-after-free vulnerabilities can be explotied remotely to cause denial of service;
2. An use-after-free vulnerability in Web Workers can be explotied remotely to cause denial of service;
3. Multiple heap overflow vulnerabilities in WebAssembly can be exploited remotely to cause denial of service;
4. An integer overflow vulnerability in the Skia library can be exploited remotely to cause denial of service;
5. An unspecified vulnerability in WebExtentions can be exploited remotely to bypass security restrictions;
6. An unspecified vulnerability in Developer Tools can be exploited remotely to obtain sensitive information;
7. An unspecified vulnerability in the printing process can be exploited remotely to bypass security restrictions;
8. Origin attribute segregation violation by a Blob URL can be exploited remotely to obtain sensitive information;
9. An unspecified vulnerability can be exploited remotely to obtain sensitive information;
10. An unspecified vulnerability can be exploited remotely to spoof user interface;
11. An unspecified vulnerability can be exploited remotely via specially formatted URL to spoof user interface;
12. An improper enforce of requirement in Developer Tool panels of an extention can be exploited remotely to gain priveleges
13. An improper enforce of requirement in the browser.identity.launchWebAuthFlow function can be exploited remotely to gain priveleges;
14. An incorrect use of the changed HttpOnly cookie can be exploited remotely to bypass security restrictions;
15. An unspecified vulnerability can be exploited remotely via specially crafted background network request to obtain sensitive information;
16. An improper enforce of requirement in the WebExtensions can be exploited remotely to bypass security restrictions;
17. An unspecified vulnerability can be exploited remotely via specially crafted URL to spoof user interface;
18. An unspecified vulnerability in Activity Stream can be exploited remotely to bypass security restrictions;
19. An unspecified vulnerability in the reader view can be exploited remotely to perform cross site scripting (XSS) attack;
20. An unspecified vulnerability in the addressbar can be exploited remotely via some Tibetan characters in several fonts to spoof user interface;
21. A potential integer overflow vulnerability in the DoCrypt function of WebCrypto can be exploited remotely to denial of service;
22. Multiple memory corruption vulnerabilities can be exploited remotely to execute arbitrary code;

Technical details

Vulnerabilities (2)-(9), (11)-(16), (18), (19), (21) affects only Mozilla Firefox.

Vulnerabilities (10), (20) affects only OS X versions of Mozilla Firefox.

Mozilla Firefox versions earlier then 58
Mozilla Firefox ESR versions earlier then 52.6

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