CVE-2020-6616

moderate-risk

Published 2020-05-08

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).

Do I need to act?

0.12% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

ADJACENT_NETWORK / LOW complexity

Affected Products (20)

Android

Ipados

Iphone Os

Mac Os X

Affected Vendors

Apple Google

References (20)

Third Party Advisory http://bluetooth.lol

Mailing List http://seclists.org/fulldisclosure/2020/May/49

Third Party Advisory https://github.com/seemoo-lab/internalblue/blob/master/doc/rng.md

Exploit https://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_random...

Vendor Advisory https://security.samsungmobile.com/securityUpdate.smsb

Third Party Advisory https://support.apple.com/HT211168

Third Party Advisory https://support.apple.com/kb/HT211100

Third Party Advisory https://support.apple.com/kb/HT211168

Third Party Advisory https://twitter.com/naehrdine/status/1255980443368919045

Third Party Advisory https://twitter.com/naehrdine/status/1255981245147877377