Secunia Research: libsndfile "aiff_read_chanmap()" Information Disclosure Vulnerability

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                    Secunia Research 2017/06/09
                                            
libsndfile "aiff_read_chanmap()" Information Disclosure 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 Software...............................................8
Verification.........................................................9

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1) Affected Software

* libsndfile version 1.0.28. Other versions may also be affected.

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2) Severity

Rating: Moderately critical
Impact: Exposure of sensitive information
Where:  From remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in libsndfile, which
can be exploited by malicious people to disclose potentially sensitive
information.

The vulnerability is caused due to an error in the
"aiff_read_chanmap()" function (src/aiff.c), which can be exploited to
cause an out-of-bounds read memory access via a specially crafted AIFF
file.

The vulnerability is confirmed in version 1.0.28. Other versions may
also be affected.

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4) Solution

Fixed in the source code repository.
https://github.com/erikd/libsndfile/commit/f833c53cb596e9e1792949f762e0b33661822748

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5) Time Table

2017/05/23 - Maintainer contacted with the vulnerability details.
2017/05/23 - Maintainer confirmed the vulnerability.
2017/05/24 - Maintainer released a fix.
2017/06/12 - Release of Secunia Advisory SA76717.
2017/06/12 - Public disclosure of Secunia Research Advisory.

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6) Credits

Discovered by Laurent Delosieres, Secunia Research at Flexera Software

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7) References

The Flexera Software CNA has assigned the CVE-2017-6892 identifier
for the vulnerabilities through the Common Vulnerabilities and
Exposures (CVE) project.

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8) About Flexera Software

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

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

Flexera Software  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  Software  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 Software
and today our in-house software vulnerability research remains the
core  of  the  Software  Vulnerability  Management  products  at
Flexera Software.

https://secuniaresearch.flexerasoftware.com/secunia_research/

The  public  Advisory database  contains sufficient 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/advisories/

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9) Verification

Please verify this advisory by visiting the Secunia website:
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-13/

Complete list of vulnerability reports published by Secunia Research:
https://secuniaresearch.flexerasoftware.com/secunia_research/

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