{ "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32841", "STATE": "PUBLIC", "TITLE": "Path Traversal in SharpZipLib" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "sharpziplib", "version": { "version_data": [ { "version_affected": "<", "version_name": "1.3.3", "version_value": "1.3.3" }, { "version_affected": ">=", "version_name": "1.3.0", "version_value": "1.3.0" } ] } } ] }, "vendor_name": "icsharpcode" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.3.0 and prior to version 1.3.3, a check was added if the destination file is under destination directory. However, it is not enforced that `destDir` ends with slash. If the `destDir` is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins with the destination directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 contains a patch for this vulnerability." } ] }, "generator": { "engine": "Vulnogram 0.0.9" }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')" } ] } ] }, "references": { "reference_data": [ { "name": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/", "refsource": "CONFIRM", "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/" }, { "name": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3", "refsource": "MISC", "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3" }, { "name": "https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78", "refsource": "MISC", "url": "https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78" } ] }, "source": { "discovery": "INTERNAL" } }