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CVE-2022-21221: Path traversal in github.com/valyala/fasthttp

March 18, 2022 (updated March 21, 2022)

The package github.com/valyala/fasthttp before 1.34.0 is vulnerable to Directory Traversal via the ServeFile function, due to improper sanitization. It is possible to be exploited by using a backslash %5c character in the path. Note: This security issue impacts Windows users only.

References

  • github.com/advisories/GHSA-fx95-883v-4q4h
  • github.com/valyala/fasthttp/commit/15262ecf3c602364639d465daba1e7f3604d00e8
  • github.com/valyala/fasthttp/commit/6b5bc7bb304975147b4af68df54ac214ed2554c1
  • github.com/valyala/fasthttp/issues/1226
  • github.com/valyala/fasthttp/releases/tag/v1.34.0
  • nvd.nist.gov/vuln/detail/CVE-2022-21221
  • snyk.io/vuln/SNYK-GOLANG-GITHUBCOMVALYALAFASTHTTP-2407866

Code Behaviors & Features

Detect and mitigate CVE-2022-21221 with GitLab Dependency Scanning

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Affected versions

All versions before 1.34.0

Fixed versions

  • v1.34.0

Solution

Upgrade to version 1.34.0 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Source file

go/github.com/valyala/fasthttp/CVE-2022-21221.yml

Spotted a mistake? Edit the file on GitLab.

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