BugTraq
Secunia Research: FLAC "read_metadata_vorbiscomment_()" Memory Leak Denial of Service Vulnerability May 15 2017 09:55AM
Secunia Research (remove-vuln secunia com)
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Secunia Research 2017/05/11

FLAC "read_metadata_vorbiscomment_()" Memory Leak

Denial of Service 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

* FLAC version 1.3.2. Other versions may also be affected.

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2) Severity

Rating: Moderately critical

Impact: Denial of Service

Where: From remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in FLAC, which can be

exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the

"read_metadata_vorbiscomment_()" function (stream_decoder.c), which

can be exploited to cause a memory leak via a specially crafted FLAC

file.

The vulnerability is confirmed in version 1.3.2. Other versions may

also be affected.

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4) Solution

Fixed in the source code repository.

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5) Time Table

2017/04/06 - Initial contact to request security contact.

2017/04/06 - Maintainer responds with security contact.

2017/04/06 - Maintainer contacted with the vulnerability details.

2017/04/08 - Maintainer provides a patch in the official source

code repository.

2017/04/21 - Release of Secunia Advisory SA76102.

2017/05/11 - Public disclosure of Secunia Research Advisory.

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6) Credits

Discovered by Jakub Jirasek, Secunia Research at Flexera Software.

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7) References

The Flexera Software CNA has assigned the CVE-2017-6888 identifier

for the vulnerability 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.

http://secunia.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

http://secunia.com/advisories/

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9) Verification

Please verify this advisory by visiting the Secunia website:

http://secunia.com/secunia_research/2017-7/

Complete list of vulnerability reports published by Secunia Research:

http://secunia.com/secunia_research/

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