Vulnerability Monitor

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CVE-2017-6956

On the Broadcom Wi-Fi HardMAC SoC with fbt firmware, a stack buffer overflow occurs when handling an 802.11r (FT) authentication response, leading to remote code execution via a crafted access point that sends a long R0KH-ID field in a Fast BSS Transition Information Element (FT-IE).

Published

2017-04-05T14:59:00.370

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.8 (HIGH)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

6.5

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	broadcom	hardmac_wi-fi_soc_firmware	6.37.34.40	Yes
Hardware	broadcom	hardmac_wi-fi_soc	-	No

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=1059 Third Party Advisory ([email protected])
https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html Third Party Advisory ([email protected])
https://bugs.chromium.org/p/project-zero/issues/detail?id=1059 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)