HTTP: Mozilla Firefox createImageBitmap Integer Overflow

This signature detects attempts to exploit a known integer overflow vulnerability against Mozilla Firefox. Successful exploitation could lead to information disclosure or potential remote code execution in the security context of the target user.

Extended Description

An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimental extensions to the "createImageBitmap" API. This function runs in the content sandbox, requiring a second vulnerability to compromise a user's computer. This vulnerability affects Firefox ESR < 52.0.1 and Firefox < 52.0.1.

Affected Products

Mozilla firefox

References

CVE: CVE-2017-5428

URL: http://securitytracker.com/id?1038060 https://www.mozilla.org/en-us/security/advisories/mfsa2017-08/

Short Name

HTTP:STC:CREATE-IMAGE-BITMAP-CE

Severity

Major

Recommended

True

Recommended Action

Drop

HTTP: Mozilla Firefox createImageBitmap Integer Overflow

Extended Description

Affected Products

References

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