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

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Broadcom wl WiFi Driver. It has been declared as critical. This affects the function wlc_wpa_sup_eapol of the component Vendor Information Handler. Such manipulation as part of WiFi Packet leads to heap-based overflow. This vulnerability is traded as CVE-2019-9501. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Broadcom wl WiFi Driver (Hardware Driver Software) (version now known). It has been rated as critical. Affected by this issue is the function wlc_wpa_sup_eapol of the component Vendor Information Handler. The manipulation as part of a WiFi Packet leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to 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(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. By supplying a vendor information element with a data length larger than 32 bytes, a heap buffer overflow is triggered in wlc_wpa_sup_eapol. 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 shared 02/03/2020. This vulnerability is handled as CVE-2019-9501 since 03/01/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

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.

The entry VDB-149625 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
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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: 🔍

Physical: No
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-2019-9501 (🔍)
GCVE (CVE): GCVE-0-2019-9501
GCVE (VulDB): GCVE-100-149624
See also: 🔍

Entryinfo

Created: 02/04/2020 08:41
Updated: 03/28/2024 01:56
Changes: 02/04/2020 08:41 (39), 02/04/2020 08:46 (12), 03/28/2024 01:49 (16), 03/28/2024 01:56 (19)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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