CVE-2017-11120: Buffer Overflow

Published Sep 5, 2017
·
Updated

On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.

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
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-2017-11120?

CVE-2017-11120 is a memory corruption issue in Wi-Fi chips that can be exploited by crafting a malformed RRM neighbor report frame.

2

What is the severity of CVE-2017-11120?

CVE-2017-11120 has a severity rating of critical (9).

3

How does CVE-2017-11120 affect Broadcom BCM4355C0 firmware version 9.44.78.27.0.1.56?

Broadcom BCM4355C0 firmware version 9.44.78.27.0.1.56 is affected by CVE-2017-11120 and is vulnerable to an internal buffer overflow triggered by a malformed RRM neighbor report frame.

4

What is the remedy for CVE-2017-11120 on Apple tvOS 11?

CVE-2017-11120 can be fixed by upgrading Apple tvOS to version 11 or higher.

5

Where can I find more information about CVE-2017-11120?

You can find more information about CVE-2017-11120 on the following references: http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html, http://www.securityfocus.com/bid/100984, and https://bugs.chromium.org/p/project-zero/issues/detail?id=1289.

Contact

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