CVE-2020-6616
Last modified
CVE-2020-6616 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.73% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Android | All versions | — | |
| Apple | Ipados | < 13.5 | — |
| Apple | Iphone Os | < 13.5 | — |
| Apple | Mac Os X | >= 10.13.0, < 10.13.6 | — |
| Apple | Mac Os X | >= 10.14.0, < 10.14.6 | — |
| Apple | Mac Os X | >= 10.15, < 10.15.4 | — |
| Apple | Mac Os X | 10.13.6 | Security Update 2018-002 |
| Apple | Mac Os X | 10.14.6 | Security Update 2019-001 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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