CVE-2020-6616

medium

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).

References

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

https://twitter.com/naehrdine/status/1255980443368919045

https://twitter.com/naehrdine/status/1255981245147877377

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

http://bluetooth.lol

https://media.ccc.de/v/DiVOC-6-finding_eastereggs_in_broadcom_s_bluetooth_random_number_generator

https://support.apple.com/kb/HT211100

https://support.apple.com/kb/HT211168

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

https://support.apple.com/HT211168

Details

Source: MITRE

Published: 2020-05-08

Updated: 2022-04-26

Risk Information

CVSS v2

Base Score: 3.3

Vector: AV:A/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 6.5

Severity: LOW

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM