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

Vulnerability Note VU#131263

Original Release Date: 2013-04-19 | Last Revised: 2013-04-19

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

131263
 
Affected   Unknown   Unaffected

Avast! Antivirus Software

Notified:  March 22, 2013 Updated:  April 16, 2013

Status

  Affected

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.


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

References

Acknowledgements

Thanks to Kurt Traver for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

CVE IDs: CVE-2013-0122
Date Public: 2013-04-19
Date First Published: 2013-04-19
Date Last Updated: 2013-04-19 19:11 UTC
Document Revision: 13

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