Lhaplus may insecurely load dynamic libraries


Lhaplus may use unsafe methods for determining how to load DLLs.

Lhaplus is a file compression/extraction software supporting multiple file formats. Lhaplus loads certain DLL's when files are extracted. Lhaplus contains an issue with the DLL search path, which may lead to insecurely loading dynamic libraries.

Hitachi Incident Response Team and Makoto Shiotsuki reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

  • Lhaplus Lhaplus Version 1.57 and earlier


An attacker may execute arbitrary code with the privilege of running the application.

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2010-2368

  1. JVN : JVN#82752978
  2. National Vulnerability Database (NVD) : CVE-2010-2368
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in Lhaplus
  4. US-CERT Vulnerability Note : VU#707943
  5. US-CERT Technical Cyber Security Alert : TA10-238A
Revision History

  • [2010/10/18]
      Web page published