libvorbis _make_decode_tree denial of service

libvorbis-makedecodetree-dos (42521) The risk level is classified as MediumMedium Risk

Description:

libvorbis is vulnerable to a denial of service, caused by the improper checking of the underpopulated Huffman trees. By persuading a victim to open a specially-crafted OGG file, a remote attacker could corrupt arbitrary memory during the execution of the _make_decode_tree function or cause a denial of service.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Refer to the Xiph SVN repository for patch, upgrade or suggested workaround information. See References.

References:

  • Xiph SVN repository: Xiph.Org.
  • xiph Web site: Vorbis audio compression.
  • ASA-2008-208: libvorbis security update (RHSA-2008-0271)
  • CVE-2008-2009: Xiph.org libvorbis before 1.0 does not properly check for underpopulated Huffman trees, which allows remote attackers to cause a denial of service (crash) via a crafted OGG file that triggers memory corruption during execution of the _make_decode_tree function.
  • RHSA-2008-0271: Important: libvorbis security update
  • SECTRACK ID: 1020029: libvorbis Bugs Let Remote Users Deny Service or Execute Arbitrary Code
  • USN-861-1: libvorbis vulnerabilities
  • VUPEN/ADV-2008-1510: Libvorbis Audio Data Handling Buffer Overflow and DoS Vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • Xiph.Org Libvorbis

Reported:

May 14, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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