CVE-2020-0471: Input Validation
In reassembleanddispatch of packetfragmenter.cc, there is a possible way to inject packets into an encrypted Bluetooth connection due to improper input validation. This could lead to remote escalation of privilege between two Bluetooth devices by a proximal attacker, with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/platform/system/btto a version that resolves this vulnerability.Fixed in 8.0:2021-01-01 - Upgrade
Upgrade
android/platform/system/btto a version that resolves this vulnerability.Fixed in 8.1:2021-01-01 - Upgrade
Upgrade
android/platform/system/btto a version that resolves this vulnerability.Fixed in 9:2021-01-01 - Upgrade
Upgrade
android/platform/system/btto a version that resolves this vulnerability.Fixed in 10:2021-01-01 - Upgrade
Upgrade
android/platform/system/btto a version that resolves this vulnerability.Fixed in 11:2021-01-01
Event History
Frequently Asked Questions
What is the severity of CVE-2020-0471?
CVE-2020-0471 has a high severity rating due to the potential for remote escalation of privilege in Bluetooth connections.
How do I fix CVE-2020-0471?
To fix CVE-2020-0471, it is recommended to update your Android device to the latest security patch version provided by Google.
Which Android versions are affected by CVE-2020-0471?
CVE-2020-0471 affects Android versions 8.0, 8.1, 9.0, 10.0, and 11.0.
Who is impacted by CVE-2020-0471?
Users of vulnerable Android versions could be impacted by CVE-2020-0471 if they connect to nearby malicious Bluetooth devices.
What type of attack does CVE-2020-0471 enable?
CVE-2020-0471 enables a proximal attacker to inject packets into an encrypted Bluetooth connection, potentially escalating privileges.