JVN#70734805 Lhaplus buffer overflow vulnerability

Overview

Lhaplus, software for compression and decompression supporting various compressed file formats, contains a buffer overflow vulnerability.

Products Affected

1.54 beta 1 and earlier

Description

Lhaplus, software for compression and decompression supporting various compressed file formats, contains a buffer overflow vulnerability. If a user opens a specially crafted file, arbitrary code could be executed with the privilege of the user.

Impact

Arbitrary code could be executed with the privilege of the user who opened a specially crafted file.

Solution

Update the Software
Apply the latest updates provided by the developer.
For more information, refer to the developer's website.

Vendor Status

Vendor	Status	Last Update	Vendor Notes
Schezo	Vulnerable	2007/09/21

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.09.21

Measures	Conditions	Severity
Access Required	Routed - can be attacked over the Internet using packets	High
Authentication	None - anonymous or no authentication (IP addresses do not count)	High
User Interaction Required	Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file	Medium
Exploit Complexity	Medium-High - expertise and/or luck required (guessing correctly in medium-sized space, kernel expertise)	Medium

Description of each analysis measures

Credit

Yuji Ukai of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Alert	JPCERT-AT-2007-0020
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2007-5048
JVN iPedia	JVNDB-2007-000697