CVE-2016-5261

High

Description

Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.

SeverityHigh
CVSS8.8
Exploit probability—
ProductMozilla Firefox
PublishedAug 5, 2016
First seenAug 5, 2016

How to fix

Affected products

ProductAffected versionsFixed in
mozilla firefoxv ≤ 47.0.1—

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