CVE-2017-11121: Buffer Overflow

Published Sep 5, 2017
·
Updated

On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, properly crafted malicious over-the-air Fast Transition frames can potentially trigger internal Wi-Fi firmware heap and/or stack overflows, leading to denial of service or other effects, aka B-V2017061205.

Other sources

Wi-Fi. A memory corruption issue was addressed with improved memory handling.

Credit

Gal Beniamini(Google Project Zero)

Affected Software

7 affected componentsFixes available
Apple tvOS<11
11
Google Android
Apple iOS<11
11
Broadcom Bcm4355c0 Firmware=9.44.78.27.0.1.56
Broadcom BCM4355C0
Apple iPhone OS<11.0
Apple tvOS<11.0

Event History

Sep 5, 2017
CVE Published
via Android·12:00 AM
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software
Sep 27, 2017
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
Description

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2017-11121?

CVE-2017-11121 is a vulnerability affecting Wi-Fi chips, specifically the Broadcom BCM4355C0 Wi-Fi chip.

2

What is the severity of CVE-2017-11121?

CVE-2017-11121 has a severity level of critical with a value of 9.

3

How does CVE-2017-11121 affect Google Android devices?

CVE-2017-11121 affects Google Android devices running on Broadcom BCM4355C0 Wi-Fi chips with the firmware version 9.44.78.27.0.1.56 and earlier.

4

How does CVE-2017-11121 affect Apple iOS devices?

CVE-2017-11121 affects Apple iOS devices running on iOS version up to and excluding 11.0.

5

How can I fix CVE-2017-11121?

To fix CVE-2017-11121, apply the necessary firmware or software updates provided by the respective vendors - Google and Apple.

Contact

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