CVE-2020-6616
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.
Does this matter?
Lower severity and a low EPSS score (0.73%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.73% probability · 52th percentile
- CISA KEV
- Not listed
- Affected
- google/android · apple/ipados · apple/iphone os · apple/mac os x
- Source
- cve@mitre.org
References
- http://bluetooth.lolThird Party Advisory
- http://seclists.org/fulldisclosure/2020/May/49Mailing List, Third 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_random_number_generatorExploit, Third 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 List, Third 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_random_number_generatorExploit, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.