Libextractor 'flac_extractor.c' Null Pointer Dereference Denial of Service Vulnerability

Bugtraq ID:	101272
Class:	Design Error
CVE:	CVE-2017-15267
Remote:	Yes
Local:	No
Published:	Oct 11 2017 12:00AM
Updated:	Oct 11 2017 12:00AM
Credit:	Zhao Liang, Huawei Weiran Labs.
Vulnerable:	GNU libextractor 1.4
Not Vulnerable:

Libextractor 'flac_extractor.c' Null Pointer Dereference Denial of Service Vulnerability

Libextractor is prone to a denial-of-service vulnerability.

Attackers can exploit this issue to crash the affected application, resulting in a denial-of-service condition.

Libextractor 1.4 is vulnerable; other versions may also be affected.

Libextractor 'flac_extractor.c' Null Pointer Dereference Denial of Service Vulnerability

The researcher has created a proof-of-concept to demonstrate the issue. Please see the references for more information.

Libextractor 'flac_extractor.c' Null Pointer Dereference Denial of Service Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Libextractor 'flac_extractor.c' Null Pointer Dereference Denial of Service Vulnerability

References:

• Bug 1499600 - NULL Pointer Dereference vulneribility in libextract when get flac (Red Hat)
  
• GNU Libextractor Homepage (GNU)
  
• Re: [bug-libextractor] NULL Pointer Dereference vulneribility in libextr (Gnu.org)
  
• Subject: CVE request: Two DoS vulneribilities in libextractor (openwall)