OpenOffice.org vclmi.dll buffer overflow

openoffice-vclmi-bo (75692) The risk level is classified as HighHigh Risk

Description:

OpenOffice.org is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the vclmi.dll module. By persuading a victim to open a specially-crafted JPEG object within a DOC file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

Note: This vulnerability also affects LibreOffice.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of OpenOffice.org (3.4 or later), available from the OpenOffice.org Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • libreoffice Web Site: CVE-2012-1149 Integer overflows in graphic object loading.
  • Open Office Web Site: OpenOffice.org integer overflow error in vclmi.dll module when allocating memory for an embedded image object .
  • BID-53570: OpenOffice Prior to 3.4 Multiple Memory Corruption Vulnerabilities
  • CVE-2012-1149: Integer overflow in the vclmi.dll module in OpenOffice.org (OOo) 3.3, 3.4 Beta, and possibly earlier, and LibreOffice before 3.5.3, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted embedded image object, as demonstrated by a JPEG image in a .DOC file, which triggers a heap-based buffer overflow.
  • DSA-2473: openoffice.org -- buffer overflow
  • DSA-2487: openoffice.org -- buffer overflow
  • OSVDB ID: 81988: OpenOffice.org (OOo) vclmi.dll Module Embedded Image DOC File Handling Remote Overflow
  • RHSA-2012-0705: Important: openoffice.org security update
  • SA46992: OpenOffice.org Two Vulnerabilities
  • SA47244: LibreOffice vclmi.dll Integer Overflow Vulnerability

Platforms Affected:

  • LibreOffice LibreOffice 3.4.4 Build 402
  • OpenOffice OpenOffice.org 3.3
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux Optional Productivity Applications 5 Server

Reported:

May 17, 2012

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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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