CVE-2017-11121

moderate-risk

Published 2017-09-28

On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, properly crafted malicious over-the-air Fast Transition frames can potentially trigger internal Wi-Fi firmware heap and/or stack overflows, leading to denial of service or other effects, aka B-V2017061205.

Do I need to act?

2.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Bcm4355C0 Firmware

Iphone Os

Tvos

Affected Vendors

Broadcom Apple

References (20)

Exploit http://packetstormsecurity.com/files/144329/Broadcom-802.11r-FT-Reassociation-Re...

Third Party Advisory http://www.securityfocus.com/bid/100984

Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1291

Mailing List https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html

Mailing List https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html

Third Party Advisory https://source.android.com/security/bulletin/2017-09-01

Third Party Advisory https://support.apple.com/HT208112

Third Party Advisory https://support.apple.com/HT208113

Third Party Advisory https://support.apple.com/en-us/HT208112

Third Party Advisory https://support.apple.com/en-us/HT208113