Free Download Manager Site Explorer buffer overflow

fdm-siteexplorer-bo (58626) The risk level is classified as HighHigh Risk


Free Download Manager is vulnerable to multiple stack-based buffer overflows, caused by improper bounds checking by the Site Explorer functionality or FTP servers. By opening folders, Web sites, setting the directory on FTP servers or handling redirects, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.


Base Score: 7.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
Temporal Score: 5.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed


Gain Access


Upgrade to the latest version of Free Download Manager (3.0 build 852 or later), available from the Free Download Manager Web site. See References.


  • Free Download Manager Web site: Free Download Manager - absolutely free download accelerator and manager.
  • Secunia Research 13/05/2010: Free Download Manager Four Buffer Overflow Vulnerabilities.
  • BID-40146: Free Download Manager Multiple Remote Buffer Overflow Vulnerabilities
  • CVE-2010-0998: Multiple stack-based buffer overflows in Free Download Manager (FDM) before 3.0.852 allow remote attackers to execute arbitrary code via vectors involving (1) the folders feature in Site Explorer, (2) the websites feature in Site Explorer, (3) an FTP URI, or (4) a redirect.
  • OSVDB ID: 64671: Free Download Manager Site Explorer Folder Handling Overflow
  • OSVDB ID: 64672: Free Download Manager Redirect Handling Overflow
  • OSVDB ID: 64673: Free Download Manager FTP Server Directory Setting Overflow
  • OSVDB ID: 64674: Free Download Manager Site Explorer Website Handling Overflow
  • SA39447: Free Download Manager Multiple Vulnerabilities

Platforms Affected:

  • Free Download Manager Free Download Manager (FDM) 3.0 build 850


May 13, 2010

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