Vulnerability Note VU#131263

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

Original Release date: 19 Apr 2013 | Last revised: 19 Apr 2013

Overview

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

Description

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.

Impact

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

Solution

Apply an Update

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

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Avast! Antivirus SoftwareAffected22 Mar 201316 Apr 2013
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

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

References

Credit

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

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