PT-2017-2984 · Broadcom · Bcm4355C0

Gal Beniamini · Published 2017-06-12 · Updated 2019-03-13 · CVE-2017-11120

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Broadcom BCM4355C0 Wi-Fi chips version 9.44.78.27.0.1.56

Description The issue is caused by a buffer overflow in the Wi-Fi firmware. An attacker can craft a malformed RRM neighbor report frame to trigger this overflow. Exploitation of the issue may allow a remote attacker to impact the confidentiality, integrity, and availability of data.

Recommendations For Broadcom BCM4355C0 Wi-Fi chips version 9.44.78.27.0.1.56, consider disabling the Wi-Fi firmware until a patch is available to prevent exploitation of the buffer overflow. As a temporary workaround, restrict access to the RRM neighbor report frame to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2017-02326

CVE-2017-11120

Affected Products

Bcm4355C0

References · 14

• 🔥 https://exploit-db.com/exploits/42784 · Exploit
• 🔥 http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html · Exploit
• 🔥 https://bugs.chromium.org/p/project-zero/issues/detail?id=1289 · Exploit
• https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html · Vendor Advisory
• https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02326 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-11120 · Security Note
• https://osv.dev/vulnerability/CVE-2017-11120 · Vendor Advisory
• https://support.apple.com/HT208112 · Note
• https://support.apple.com/en-us/HT208113 · Note
• https://source.android.com/security/bulletin/2017-09-01 · Note
• https://support.apple.com/en-us/HT208112 · Note
• https://support.apple.com/HT208113 · Note
• http://securityfocus.com/bid/100984 · Note