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CVE-2018-1002205: DotNetZip Zip-Slip Vulnerability

October 16, 2018 (updated May 6, 2025)

DotNetZip.Semvered before 1.11.0 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’.

References

  • github.com/advisories/GHSA-7378-6268-4278
  • github.com/haf/DotNetZip.Semverd/commit/55d2c13c0cc64654e18fcdd0038fdb3d7458e366
  • github.com/haf/DotNetZip.Semverd/pull/121
  • github.com/snyk/zip-slip-vulnerability
  • nvd.nist.gov/vuln/detail/CVE-2018-1002205
  • snyk.io/research/zip-slip-vulnerability
  • snyk.io/vuln/SNYK-DOTNET-DOTNETZIP-60245

Code Behaviors & Features

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Affected versions

All versions before 1.11.0

Fixed versions

  • 1.11.0

Solution

Upgrade to version 1.11.0 or above.

Impact 5.5 MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Source file

nuget/DotNetZip/CVE-2018-1002205.yml

Spotted a mistake? Edit the file on GitLab.

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