Compression Plus and Tumblweed EMF Stack Overflow

Risk: Medium
Local: No
Remote: Yes
CWE: CWE-Other

CVSS Base Score: 5.1/10
Impact Subscore: 6.4/10
Exploitability Subscore: 4.9/10
Exploit range: Remote
Attack complexity: High
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

The Compression Plus library is designed to handle de/compression of popular archiving formats such as ARC, ARK, PAK, ARJ, CAB, GZ, LBR, TAR, TAZ, TGZ, Z, ZIP, and ZOO. The code fails to properly validate input while processing specially crafted ZOO files, which results in a stack-based buffer overflow. Software products that implement the Compression Plus library are vulnerable to local or remote code execution, depending on the nature of the calling process. Details are available from the following URL:

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