Advisories for Nuget/Sharpcompress package

SharpCompress is a fully managed C# library to deal with many compression types and formats. SharpCompress has been found to be vulnerable to partial path traversal. SharpCompress recreates a hierarchy of directories under destinationDirectory if ExtractFullPath is set to true in options. In order to prevent extraction outside the destination directory the destinationFileName path is verified to begin with fullDestinationDirectoryPath. However, it is not enforced that fullDestinationDirectoryPath ends with slash. …

SharpCompress is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.