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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Multiple vulnerabilities in LHa
Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200405-02
(Multiple vulnerabilities in LHa)
Ulf Harnhammar found two stack overflows and two directory traversal
vulnerabilities in LHa version 1.14 and 1.17. A stack overflow occurs when
testing or extracting archives containing long file or directory names.
Furthermore, LHa doesn't contain sufficient protection against relative or
absolute archive paths.
The stack overflows can be exploited to execute arbitrary code with the
rights of the user testing or extracting the archive. The directory
traversal vulnerabilities can be used to overwrite files in the filesystem
with the rights of the user extracting the archive, potentially leading to
denial of service or privilege escalation. Since LHa is often interfaced to
other software like an email virus scanner, this attack can be used
There is no known workaround at this time. All users are advised to upgrade
to the latest available version of LHa.
All users of LHa should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=app-arch/lha-114i-r2"
# emerge ">=app-arch/lha-114i-r2"
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2005 Michel Arboi
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