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      Secunia Research (now part of Flexera Software) 09/10/2015

Google Picasa Phase One Tags Processing Integer Overflow Vulnerability

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

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1) Affected Software

* Google Picasa version 3.9.140 Build 239
* Google Picasa version 3.9.140 Build 248

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System Access
Where:  From remote
 
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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in Google Picasa,
which can be exploited by malicious people to compromise a user's
system.

The vulnerability is caused due to an integer overflow error when
processing data related to phase one 0x412 tag and can be exploited to
cause a heap-based buffer overflow.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in versions 3.9.140 Build 239 and
3.9.140 Build 248 running on Windows.

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4) Solution 

The vendor has released a fix in version 3.9.140 Build 248, however,
the fix is ineffective. No official solution is currently available.
The vendor is currently planning to release a fix on 30th October,
2015.

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5) Time Table 

04/08/2015 - Vendor notified of vulnerability.
04/08/2015 - Vendor acknowledges report.
10/08/2015 - Vendor requests PoC.
10/08/2015 - Provision of PoC.
19/08/2015 - Vendor acknowledges receipt.
08/09/2015 - Request of status update.
11/09/2015 - Vendor states fixed in code. ETA not yet available.
19/09/2015 - Vendor states update has been pushed.
25/09/2015 - Vendor notified of incomplete fix.
26/09/2015 - Vendor acknowledges receipt.
05/10/2015 - Request ETA of fix. Vendor notified that due to public
             availability of improper fix release an advisory
             release deadline on 09/10/2015 is established.
06/10/2015 - Vendor acknowledges and estimates 30/10/2015 release of
             fix.
06/10/2015 - Vendor notified that advisory deadline will still
             be applicable.
06/10/2015 - Vendor acknowledges and states to send notification once
             properly fixed.
09/10/2015 - Public disclosure of advisory.
12/10/2015 - Public disclosure of research advisory.

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6) Credits 

Discovered by Hossein Lotfi, Secunia Research (now part of
Flexera Software).

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7) References

Currently no CVE identifier is assigned.
 
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8) About Secunia (now part of Flexera Software)

In September 2015, Secunia has been acquired by Flexera Software:

https://secunia.com/blog/435/

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

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9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2015-03/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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