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CVE-2019-6496
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
The ThreadX-based firmware on Marvell Avastar Wi-Fi devices, models 88W8787, 88W8797, 88W8801, 88W8897, and 88W8997, allows remote attackers to execute arbitrary code or cause a denial of service (block pool overflow) via malformed Wi-Fi packets during identification of available Wi-Fi networks. Exploitation of the Wi-Fi device can lead to exploitation of the host application processor in some cases, but this depends on several factors including host OS hardening and the availability of DMA..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 8.3/10
- Exploit Score
- 6.5/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 10/10
- Confidentiality Impact
- Complete
- Availability Impact
- Complete
- Integrity Impact
- Complete
CVSSv3.1 Score
- Severity
- High
- Base Score
- 8.8/10
- Exploit Score
- 2.8/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 5.9/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:o:marvell:88w8787_firmware:-:*:*:*:*:*:*:* |
Yes
|
- | ||
| cpe:2.3:h:marvell:88w8787:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:o:marvell:88w8797_firmware:-:*:*:*:*:*:*:* |
Yes
|
- | ||
| cpe:2.3:h:marvell:88w8797:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:o:marvell:88w8801_firmware:-:*:*:*:*:*:*:* |
Yes
|
- | ||
| cpe:2.3:h:marvell:88w8801:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:o:marvell:88w8897_firmware:-:*:*:*:*:*:*:* |
Yes
|
- | ||
| cpe:2.3:h:marvell:88w8897:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:o:marvell:88w8997_firmware:-:*:*:*:*:*:*:* |
Yes
|
- | ||
| cpe:2.3:h:marvell:88w8997:-:*:*:*:*:*:*:* |
No
|
- |
References
- https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gami
- https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-
- http://www.securityfocus.com/bid/106865
- https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement
- https://www.kb.cert.org/vuls/id/730261/
- https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-W
- https://www.synology.com/security/advisory/Synology_SA_19_07