27667 : Lhaplus LZH Archive Extended Header Processing Overflow
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Disclosure Date


A local overflow exists in Lhaplus. Lhaplus fails to handle specialy crafted LZH files resulting in a heap overflow. With a specially crafted LZH file containing an "extended header size" in the file header set to 256 or more, an attacker can execute arbitrary commands resulting in a loss of integrity and/or availability.


Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity, Loss of Availability
Exploit: Exploit Unknown


Upgrade to version 1.53 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.





  • Tan Chew Keong - chewkeongvuln.sg - Vuln.sg

CVSSv2 Score

CVSSv2 Base Score = 5.1
Source: nvd.nist.gov | Generated: 2006-08-10 | Disagree?

Access_vector_2 Access_complexity_0 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1


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