Broadcom wl WiFi Driver Vendor Information wlc_wpa_plumb_gtk WiFi Packet heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.7$0-$5k0.00

A vulnerability classified as critical has been found in Broadcom wl WiFi Driver (Hardware Driver Software) (version unknown). This affects the function wlc_wpa_plumb_gtk of the component Vendor Information Handler. The manipulation as part of a WiFi Packet leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 04/17/2019. The weakness was published 02/03/2020. This vulnerability is uniquely identified as CVE-2019-9502 since 03/01/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/04/2020).

The vulnerability was handled as a non-public zero-day exploit for at least 292 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at 149624.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.9
NVD Vector: 🔍

CNA Base Score: 7.9
CNA Vector (CERT/CC): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/2019 🔍
04/17/2019 +47 days 🔍
02/03/2020 +292 days 🔍
02/04/2020 +1 days 🔍
03/28/2024 +1514 days 🔍

Sourcesinfo

Advisory: blog.quarkslab.com
Status: Not defined

CVE: CVE-2019-9502 (🔍)
See also: 🔍

Entryinfo

Created: 02/04/2020 10:32
Updated: 03/28/2024 02:10
Changes: 02/04/2020 10:32 (39), 02/04/2020 10:37 (12), 03/28/2024 02:03 (16), 03/28/2024 02:10 (19)
Complete: 🔍

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