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Vulnerability Note VU#544656

libFLAC contains multiple vulnerabilities

Overview

libFLAC contains multiple vulnerabilities, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

FLAC (Free Lossless Audio Codec) is a lossless audio format. libFLAC is a library that can process FLAC files. libFLAC contains multiple vulnerabilities, including:
  • Metadata Block Size Heap Overflow
  • VORBIS Comment String Size Field Heap Overflow
  • VORBIS Comment String Size Length Stack Overflow
  • Picture MIME-Type Size Heap Overflow
  • Picture MIME-Type Size Stack Overflow
  • Picture Dimension Size Heap Overflow
  • Picture Description Size Heap Overflow
  • Picture Description Length Stack Overflow
  • Picture Data Length Heap Overflow
  • Picture URL Stack Overflow
  • Malformed Image/File Download Vulnerability
  • Padding Length Heap Overflow
  • Seektable Out-Of-Scope Double Free Condition
  • Malformed Seektable Double Free Condition
Please see eEye advisory AD20071115 for more details.

II. Impact

By convincing a user to open a specially crafted FLAC file, a remote, unauthenticated attacker may be able to execute arbitrary code or cause a denial-of-service condition on a vulnerable system.

III. Solution

Apply an update

These issues are addressed in version 1.2.1 of the FLAC library. Please see the Systems Affected section for fix availability for specific products.

Systems Affected

VendorStatusDate NotifiedDate Updated
America Online, Inc.Vulnerable15-Nov-2007
CogVulnerable15-Nov-2007
dBpowerampVulnerable15-Nov-2007
FLACVulnerable15-Nov-2007
Foobar2000Vulnerable15-Nov-2007
jetAudioVulnerable15-Nov-2007
PhatBoxVulnerable15-Nov-2007
Yahoo, Inc.Vulnerable15-Nov-2007

References


http://research.eeye.com/html/advisories/published/AD20071115.html
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=608
http://secunia.com/advisories/27210/
http://flac.sourceforge.net/changelog.html

Credit

This vulnerability was reported by Andre Protas of eEye Digital Security, who in turn credit Greg Linares.

This document was written by Will Dormann.

Other Information

Date Public:2007-10-11
Date First Published:2007-11-15
Date Last Updated:2007-11-19
CERT Advisory: 
CVE-ID(s):CVE-2007-4619
NVD-ID(s):CVE-2007-4619
US-CERT Technical Alerts: 
Metric:5.06
Document Revision:15

If you have feedback, comments, or additional information about this vulnerability, please send us email.
 

 
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