Vulnerabilities > CVE-2019-6496 - Out-of-bounds Write vulnerability in Marvell products
Attack vector
ADJACENT_NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 5 | |
| Hardware | 5 |
Common Weakness Enumeration (CWE)
References
- https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/
- https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/
- 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-Wi-Fi.pdf
- https://www.synology.com/security/advisory/Synology_SA_19_07