CVE-2019-9501
The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.14% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- synology/router manager · broadcom/bcm4339 firmware
- Source
- cret@cert.org
References
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlExploit, Third Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
- https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.htmlExploit, Third Party Advisory
- https://kb.cert.org/vuls/id/166939/Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.