CVE-2020-0437: Medium severity Google Android vulnerability

Published Nov 1, 2020
·
Updated

In CellBroadcastReceiver's intent handlers, there is a possible denial of service due to a missing permission check. This could lead to local denial of service of emergency alerts with no additional execution privileges needed. User interaction is not 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/packages/apps/cellbroadcastreceiver>=11-next:0<11-next:2020-11-01
11-next:2020-11-01
android/platform/packages/apps/cellbroadcastreceiver>=8.0:0<8.0:2020-11-01
8.0:2020-11-01
android/platform/packages/apps/cellbroadcastreceiver>=8.1:0<8.1:2020-11-01
8.1:2020-11-01
android/platform/packages/apps/cellbroadcastreceiver>=9:0<9:2020-11-01
9:2020-11-01
android/platform/packages/apps/cellbroadcastreceiver>=10:0<10:2020-11-01
10:2020-11-01
android/platform/packages/apps/cellbroadcastreceiver>=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/packages/apps/CellBroadcastReceiver to a version that resolves this vulnerability.

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

    Upgrade android/platform/packages/apps/CellBroadcastReceiver to a version that resolves this vulnerability.

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

    Upgrade android/platform/packages/apps/CellBroadcastReceiver to a version that resolves this vulnerability.

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

    Upgrade android/platform/packages/apps/CellBroadcastReceiver to a version that resolves this vulnerability.

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

    Upgrade android/platform/packages/apps/CellBroadcastReceiver to a version that resolves this vulnerability.

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

    Upgrade android/platform/packages/apps/CellBroadcastReceiver 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

Frequently Asked Questions

1

What is the severity of CVE-2020-0437?

CVE-2020-0437 is classified as a denial of service vulnerability due to a missing permission check.

2

How do I fix CVE-2020-0437?

To fix CVE-2020-0437, update to the latest version of the Android operating system that includes the necessary security patches.

3

Which Android versions are affected by CVE-2020-0437?

CVE-2020-0437 affects Google Android versions 8.0, 8.1, 9.0, 10.0, and 11.0.

4

Can CVE-2020-0437 be exploited without user interaction?

Yes, CVE-2020-0437 can be exploited without user interaction, leading to a local denial of service situation.

5

What components of Android are involved in CVE-2020-0437?

CVE-2020-0437 involves the CellBroadcastReceiver component of Android, specifically its intent handlers.

Company

Resources

Contact

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