CVE-2019-9500
The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow.
Impact
The Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. 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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Broadcom | Brcmfmac Driver | All versions |
| Linux | Linux Kernel | from 4.5 before 4.9.181 from 4.10 before 4.14.123 from 4.15 before 4.19.47 from 4.20 before 5.0.20 |
Weakness classification
References
- NVD record
- CVE.org record
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html
- https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deff
- https://kb.cert.org/vuls/id/166939/
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html
- https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deff
- https://kb.cert.org/vuls/id/166939/