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K
zdiOrlando Barrera II, SecTheoryZDI-10-046
HistoryApr 02, 2010 - 12:00 a.m.

Mozilla Firefox Web Worker Array Remote Code Execution Vulnerability

2010-04-0200:00:00
Orlando Barrera II, SecTheory
www.zerodayinitiative.com
27

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.391 Low

EPSS

Percentile

97.2%

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists within the implementation of web worker threads. Due to mishandling the array data type while processing posted messages, a web worker thread can be made to corrupt heap memory. An attacker can exploit this vulnerability to execute arbitrary code under the context of the user running the browser.

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.391 Low

EPSS

Percentile

97.2%