CVE-2021-39708: Critical severity Google Android vulnerability

Published Mar 1, 2022
·
Updated

In gattprocessnotification of gattcl.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected Software

4 affected componentsFixes available
Google Android=12.0
Google Android
android/platform/system/bt>=12:0<12:2022-03-01
12:2022-03-01
android/platform/system/bt>=12L:0<12L:2022-03-01
12L:2022-03-01

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 12:2022-03-01
  2. Upgrade

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

    Fixed in 12L:2022-03-01

Event History

Mar 1, 2022
Advisory Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionAffected Software
Mar 7, 2022
CVE Published
via Android·12:00 AM
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software
Mar 16, 2022
CVE Published
via MITRE·02:04 PM
Data Sourced
via MITRE·02:04 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2021-39708?

CVE-2021-39708 has a high severity rating due to its potential for remote escalation of privilege.

2

How do I fix CVE-2021-39708?

To fix CVE-2021-39708, users should update their Android devices to the latest security patch provided by Google.

3

Which devices are vulnerable to CVE-2021-39708?

CVE-2021-39708 primarily affects Android version 12.0 devices.

4

Is user interaction required to exploit CVE-2021-39708?

No, user interaction is not needed for the successful exploitation of CVE-2021-39708.

5

What are the consequences of CVE-2021-39708?

Exploitation of CVE-2021-39708 can lead to an out of bounds write that allows for remote privilege escalation.

Contact

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