Lhaplus LZH archive buffer overflow

lhaplus-lzh-bo (38624) The risk level is classified as HighHigh Risk


Lhaplus is vulnerable to a buffer overflow, caused by improper bounds checking of LZH archives. By persuading a victim to open a specially-crafted LZH archive, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.


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


Gain Access


Upgrade to the latest version of Lhaplus (1.56 or later), available from the Lhaplus Web page. See References.


  • JVN#82610488: Lhaplus.
  • Lhaplus Web page: LZH.
  • BID-26531: Lhaplus LZH Archive Processing Unspecified Remote Buffer Overflow Vulnerability
  • CVE-2007-6175: Buffer overflow in Lhaplus 1.55 and earlier allows remote attackers to execute arbitrary code via a crafted LZH archive, a different vector than CVE-2007-5048.
  • OSVDB ID: 40583: Lhaplus LZH Archive Handling Unspecified Overflow
  • SA27734: Lhaplus LZH Archive Processing Unspecified Buffer Overflow

Platforms Affected:

  • Lhaplus Lhaplus 1.55


Nov 22, 2007

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