Vulnerability Description
Some Broadcom chips mishandle Bluetooth random-number generation because a low-entropy Pseudo Random Number Generator (PRNG) is used in situations where a Hardware Random Number Generator (HRNG) should have been used to prevent spoofing. This affects, for example, Samsung Galaxy S8, S8+, and Note8 devices with the BCM4361 chipset. The Samsung ID is SVE-2020-16882 (May 2020).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Android | - | |
| Samsung | Galaxy Note8 | - |
| Samsung | Galaxy S8 | - |
| Samsung | Galaxy S8 Plus | - |
| Apple | Ipados | < 13.5 |
| Apple | Iphone Os | < 13.5 |
| Apple | Mac Os X | >= 10.13.0, < 10.13.6 |
References
- http://bluetooth.lolThird Party Advisory
- http://seclists.org/fulldisclosure/2020/May/49Mailing ListThird Party Advisory
- https://github.com/seemoo-lab/internalblue/blob/master/doc/rng.mdThird Party Advisory
- https://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_randomExploitThird Party Advisory
- https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
- https://support.apple.com/HT211168Third Party Advisory
- https://support.apple.com/kb/HT211100Third Party Advisory
- https://support.apple.com/kb/HT211168Third Party Advisory
- https://twitter.com/naehrdine/status/1255980443368919045Third Party Advisory
- https://twitter.com/naehrdine/status/1255981245147877377Third Party Advisory
- http://bluetooth.lolThird Party Advisory
- http://seclists.org/fulldisclosure/2020/May/49Mailing ListThird Party Advisory
- https://github.com/seemoo-lab/internalblue/blob/master/doc/rng.mdThird Party Advisory
- https://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_randomExploitThird Party Advisory
- https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
FAQ
What is CVE-2020-6616?
CVE-2020-6616 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Some Broadcom chips mishandle Bluetooth random-number generation because a low-entropy Pseudo Random Number Generator (PRNG) is used in situations where a Hardware Random Number Generator (HRNG) shoul...
How severe is CVE-2020-6616?
CVE-2020-6616 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-6616?
Check the references section above for vendor advisories and patch information. Affected products include: Google Android, Samsung Galaxy Note8, Samsung Galaxy S8, Samsung Galaxy S8 Plus, Apple Ipados.