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unace Directory Traversal and Buffer Overflow Vulnerabilities
Release Date: 2005-02-23 Last Update: 2005-09-26 Views: 18,042
Secunia Advisory SA14359
Where:
From remote
Impact:
System access,
Solution Status:
Unpatched
CVE Reference(s):
Description
Ulf Härnhammar has discovered some vulnerabilities in unace, which can be exploited by malicious people to compromise a user's system.
1) An input validation error when extracting files compressed with ACE (.ace) makes it possible extract files to arbitrary locations outside the specified directory using the "../" directory traversal sequence or an absolute path.
The vulnerability has been confirmed in version 1.2b. Other versions may also be affected.
2) Some boundary errors in the processing of malicious ACE archives can be exploited to cause a buffer overflow by tricking a user into extracting, testing, or listing a specially crafted archive.
The vulnerabilities have been confirmed in version 1.2b. One of the buffer overflow vulnerabilities have also been reported in version 2.04, 2.2 and 2.5. Other versions may also be affected.
Successful exploitation may allow execution of arbitrary code.
Solution:
Do not extract, list, or test untrusted ACE archives.
Further details available to Secunia VIM customers
Provided and/or discovered by:
Ulf Härnhammar, Debian Security Audit Project.
Deep Links:
Links available to Secunia VIM customers
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com
Subject: unace Directory Traversal and Buffer Overflow Vulnerabilities
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