avast! Mobile Security Android application denial-of-service vulnerability

ID VU:131263
Type cert
Reporter CERT
Modified 2013-04-19T00:00:00



avast! Mobile Security Android application version 2.0.3587, and possibly earlier versions, contains a denial-of-service vulnerability.


avast! Mobile Security (version 2.0.3587) crashes if an Intent is sent to com.avast.android.mobilesecurity.app.scanner.DeleteFileActivity with no arguments. Upon receiving the malformed intent the application will crash with the following message.

“Unfortunately, avast! Mobile Security has stopped.”

The logcat log contains a message confirming that the application has crashed.

“I/ActivityManager( 175): Process com.avast.android.mobilesecurity (pid 6596) has died.”

This results in a malicious application being able to disable the avast! Mobile Security software.


A malicious application installed on the phone may be able to disable the avast! Mobile Security software.


Apply an Update

Upgrade to avast! Mobile Security version 2.0.4400 or later to address this vulnerability.

Vendor Information

Vendor| Status| Date Notified| Date Updated
Avast! Antivirus Software| | 22 Mar 2013| 16 Apr 2013
If you are a vendor and your product is affected, let us know.

CVSS Metrics

Group | Score | Vector
Base | 3.8 | AV:L/AC:H/Au:S/C:N/I:N/A:C
Temporal | 3.0 | E:POC/RL:OF/RC:C
Environmental | 2.3 | CDP:ND/TD:M/CR:ND/IR:ND/AR:ND


  • <https://play.google.com/store/apps/details?id=com.avast.android.mobilesecurity>


Thanks to Kurt Traver for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

  • CVE IDs: CVE-2013-0122
  • Date Public: 19 Apr 2013
  • Date First Published: 19 Apr 2013
  • Date Last Updated: 19 Apr 2013
  • Document Revision: 13