CVE-2017-11120
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Apple iOS 10.2 - Broadcom Out-of-Bounds Write when Handling 802.11k Neighbor Report Response
OS impact
macOS Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 11.0 |
References
- http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html
- http://www.securityfocus.com/bid/100984
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1289
- https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html
- https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html
- https://source.android.com/security/bulletin/2017-09-01
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/en-us/HT208112
- https://support.apple.com/en-us/HT208113
- https://www.exploit-db.com/exploits/42784/
- http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html
- http://www.securityfocus.com/bid/100984
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1289
- https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html
- https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html
- https://source.android.com/security/bulletin/2017-09-01
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/en-us/HT208112
- https://support.apple.com/en-us/HT208113
- https://www.exploit-db.com/exploits/42784/
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.