CVE-2020-0449: Use After Free

Published Nov 1, 2020
·
Updated

In btmsecdisconnected of btmsec.cc, there is a possible memory corruption due to a use after free. This could lead to remote code execution in the Bluetooth server with no additional execution privileges needed. User interaction is needed for exploitation.

Affected Software

12 affected componentsFixes available
Google Android=8.0
Google Android=8.1
Google Android=9.0
Google Android=10.0
Google Android=11.0
Google Android
android/platform/system/bt>=11-next:0<11-next:2020-11-01
11-next:2020-11-01
android/platform/system/bt>=8.0:0<8.0:2020-11-01
8.0:2020-11-01
android/platform/system/bt>=8.1:0<8.1:2020-11-01
8.1:2020-11-01
android/platform/system/bt>=9:0<9:2020-11-01
9:2020-11-01
android/platform/system/bt>=10:0<10:2020-11-01
10:2020-11-01
android/platform/system/bt>=11:0<11:2020-11-01
11:2020-11-01

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 11-next:2020-11-01
  2. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 8.0:2020-11-01
  3. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 8.1:2020-11-01
  4. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 9:2020-11-01
  5. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 10:2020-11-01
  6. Upgrade

    Upgrade android/platform/system/bt to a version that resolves this vulnerability.

    Fixed in 11:2020-11-01

Event History

Nov 1, 2020
Advisory Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionAffected Software
Nov 2, 2020
CVE Published
via Android·12:00 AM
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software
Nov 10, 2020
CVE Published
via MITRE·12:52 PM
Data Sourced
via MITRE·12:52 PM
DescriptionWeakness
Event
01:15 PM

Frequently Asked Questions

1

What is the severity of CVE-2020-0449?

CVE-2020-0449 is classified as a critical vulnerability due to its potential to allow remote code execution.

2

How do I fix CVE-2020-0449?

To fix CVE-2020-0449, update your Android device to the latest security patch provided by Google.

3

Which versions of Android are affected by CVE-2020-0449?

CVE-2020-0449 affects Android versions 8.0, 8.1, 9.0, 10.0, and 11.0.

4

What type of vulnerability is CVE-2020-0449?

CVE-2020-0449 is a use-after-free vulnerability that can lead to memory corruption.

5

Is user interaction required to exploit CVE-2020-0449?

Yes, user interaction is needed for the exploitation of CVE-2020-0449.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203