MailGate Email Firewall LHA extended-header filename buffer overflow

emf-lha-extheader-filename-bo (27942) The risk level is classified as HighHigh Risk

Description:

MailGate Email Firewall is vulnerable to a stack-based buffer overflow, caused by improper bounds checking of extended-header filenames in an LHA archive. By sending an LHA archive containing a file with a long extended-header filenames in an email attachment, a remote attacker could overflow a buffer and execute arbitrary code on the system once the message is processed.

*CVSS:

Base Score: 7
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.7
  Exploitability: Unproven
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

Gain Access

Remedy:

No remedy available as of July 9, 2011.

References:

  • Full-Disclosure Mailing List, Mon Jul 24 2006 - 18:38:54 CDT: Hustle -- Tumbleweed Email Firewall Remote Vulnerability.
  • MailGate Email Firewall Web site: Email Firewall Solution, SMTP Relay - MailGate by Tumbleweed Communications.
  • BID-19146: Tumbleweed MailGate Email Firewall Multiple LHA Buffer Overflow Vulnerabilities
  • CVE-2006-3901: Multiple stack-based buffer overflows in Tumbleweed Email Firewall (EMF) allow remote attackers to execute arbitrary code via an email attachment with an LHA archive that contains a (1) file or (2) directory with a long LHA extended header, (3) an LHA archive in which the temporary pathname field for decompressed output is greater than 2 bytes, or (4) an LHA archive with a long filename.
  • OSVDB ID: 27495: Tumbleweed Email Firewall (EMF) LHA Processing MMSDecompose Function Multiple Overflow
  • SA21194: Tumbleweed Email Firewall LHA File Parsing Vulnerabilities
  • VUPEN/ADV-2006-2970: Tumbleweed MailGate Email Firewall LHA Handling Remote Buffer Overflow Vulnerabilities

Platforms Affected:

  • Tumbleweed MailGate Email Firewall

Reported:

Jul 24, 2006

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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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