Vulnerability Details : 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).
Vulnerability category: OverflowExecute code
Products affected by CVE-2017-6956
- cpe:2.3:o:broadcom:hardmac_wi-fi_soc_firmware:6.37.34.40:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6956
1.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6956
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.3
|
HIGH | AV:A/AC:L/Au:N/C:C/I:C/A:C |
6.5
|
10.0
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2017-6956
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The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6956
-
https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html
Project Zero: Over The Air: Exploiting Broadcom’s Wi-Fi Stack (Part 1)Third Party Advisory
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https://bugs.chromium.org/p/project-zero/issues/detail?id=1059
1059 - Broadcom: Stack buffer overflow when handling 802.11r (FT) authentication response - project-zero - MonorailThird Party Advisory
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