CVE-2017-6956

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Summary

CVECVE-2017-6956
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-04-05 14:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionOn 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).

Risk And Classification

Primary CVSS: v3.0 8.8 HIGH from [email protected]

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.8HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary8.3AV:A/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Broadcom Hardmac Wi-fi Soc - All All All
Operating System Broadcom Hardmac Wi-fi Soc Firmware 6.37.34.40 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
1059 - Broadcom: Stack buffer overflow when handling 802.11r (FT) authentication response - project-zero - Monorail af854a3a-2127-422b-91ae-364da2661108 bugs.chromium.org Third Party Advisory
Project Zero: Over The Air: Exploiting Broadcom’s Wi-Fi Stack (Part 1) af854a3a-2127-422b-91ae-364da2661108 googleprojectzero.blogspot.com Third Party Advisory
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