GHSA-m22m-h4rf-pwq3

Path Traversal in SharpZipLib

Source: GitHub Advisory Database (reviewed) High CVE-2021-32840

Packages

Ecosystem	Package	Affected	Fixed in
NuGet	SharpZipLib	< 1.3.3	1.3.3

Details

As written in the advisory (Markdown source, shown as plain text).

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-32840 advisory
https://github.com/icsharpcode/SharpZipLib/commit/a0e96de70b5264f4c919b09253b1522bc7a221cc web
https://github.com/icsharpcode/SharpZipLib package
https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3 web
https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib advisory