Secunia Research: BitDefender Internet Security 2017 bdfwfpf.sys IOCTL 0x8000E01D Processing Integer Overflow Vulnerability

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                    Secunia Research 2017/08/30

    BitDefender Internet Security 2017 bdfwfpf.sys IOCTL 0x8000E01D
           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 Flexera .......................................................8
Verification.........................................................9

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1) Affected Software

* BitDefender Internet Security 2017 versions prior to 21.2.25.30.

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2) Severity

Rating: Not critical
Impact: Denial of Service
Where:  Local

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in BitDefender
Internet Security 2017, which can be exploited by malicious, local
users to cause a DoS (Denial of Service).

The vulnerability is caused due to an integer overflow error within
the bdfwfpf.sys driver when processing IOCTL 0x8000E01D and can be
exploited to trigger an out-of-bounds read memory access.

The vulnerability is confirmed in BitDefender Internet Security 2017
(bdfwfpf.sys version 7.0.0.31) and reported in versions prior to
21.2.25.30.

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4) Solution

Update to version 21.2.25.30 or later.

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5) Time Table

2017/05/26 - Vendor notified about Vulnerability.
2017/05/26 - Vendor response.
2017/05/30  Vendor status update.
2017/05/31  Vendor status update.
2017/07/11  Asked for status update.
2017/07/24  Vendor status update.
2017/08/28  Asked for dedicated fixed version.
2017/08/29  Vendor reply.
2017/08/29 - Vendor notified about CVE identifier.
2017/08/30 - Release of Secunia Advisory SA73900.
2017/08/30 - Public disclosure of Secunia Research Advisory.

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6) Credits

Hossein Lotfi, Secunia Research at Flexera.

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7) References

The Flexera CNA has assigned the CVE-2017-6893 identifier for the
vulnerability through the Common Vulnerabilities and Exposures (CVE)
project.

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8) About Flexera

Flexera  helps application  producers and enterprises  increase
application usage and the value they derive from their software.

http://www.flexerasoftware.com/enterprise/company/about/

Flexera delivers  market-leading  Software  Vulnerability Management
solutions  enabling  enterprises  to  proactively  identify  and
remediate software vulnerabilities, effectively reducing the risk of
costly security breaches.

http://www.flexerasoftware.com/enterprise/products/

Flexera  supports  and  contributes  to  the community in several
ways.  We  have  always  believed  that  reliable  vulnerability
intelligence and tools to aid identifying and fixing vulnerabilities
should be  freely available  for  consumers  to ensure that users,
who care about their online privacy and security, can stay secure.
Only a few vendors address vulnerabilities in a proper way and help
users get updated  and  stay secure.  End-users (whether private
individuals or businesses) are otherwise left largely alone,  and
that is why back in 2002, Secunia Research started investigating,
coordinating  disclosure  and  verifying software vulnerabilities.
In  2016,  Secunia Research  became  a  part  of  Flexera and today
our in-house software vulnerability research remains the core  of
the  Software  Vulnerability  Management  products  at Flexera.

https://secuniaresearch.flexerasoftware.com/community/research/

The  public Secunia Advisory database  contains  information  for
researchers, security enthusiasts, and consumers to lookup individual
products and vulnerabilities and assess, whether they need to take
any actions to secure their systems or whether a given vulnerability
has already been discovered

https://secuniaresearch.flexerasoftware.com/community/advisories/

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9) Verification

Please verify this advisory by visiting the Secunia Research website:
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-16/

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