CVE-2022-21221

Published: 17 March 2022

The package github.com/valyala/fasthttp before 1.34.0 are 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.

Notes

Author	Note
mdeslaur	windows-specific

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
golang-github-valyala-fasthttp Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	focal	Not vulnerable
	impish	Not vulnerable
	jammy	Not vulnerable
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	xenial	Ignored (end of standard support)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›