Vulnerability Name:

CVE-2019-9502 (CCN-159645)

Assigned:2019-04-17
Published:2019-04-17
Updated:2020-02-10
Summary:The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:8.3 High (CVSS v2 Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:A/AC:H/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-9502

Source: CCN
Type: US-CERT VU#166939
Broadcom WiFi chipset drivers contain multiple vulnerabilities

Source: CCN
Type: Quarklab's Blog, Tue 16 April 2019
Reverse-engineering Broadcom wireless chipsets

Source: MISC
Type: Third Party Advisory
N/A

Source: XF
Type: UNKNOWN
broadcom-cve20199502-bo(159645)

Source: CERT-VN
Type: Third Party Advisory, US Government Resource
N/A

Source: CCN
Type: Broadcom Web site
Broadcom Limited | Connecting Everything

Vulnerable Configuration:Configuration 1:
  • cpe:/a:synology:router_manager:1.2:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:broadcom:bcm4339_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:broadcom:bcm4339:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    synology router manager 1.2
    broadcom bcm4339 firmware -
    broadcom bcm4339 -