CVE-2022-44571

Published: 9 February 2023

There is a denial of service vulnerability in the Content-Disposition parsingcomponent of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1, 3.0.0.1. This could allow an attacker to craft an input that can cause Content-Disposition header parsing in Rackto take an unexpected amount of time, possibly resulting in a denial ofservice attack vector. This header is used typically used in multipartparsing. Any applications that parse multipart posts using Rack (virtuallyall Rails applications) are impacted.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
ruby-rack Launchpad, Ubuntu, Debian	bionic	Released (1.6.4-4ubuntu0.2+esm4)
	focal	Released (2.0.7-2ubuntu0.1+esm3)
	jammy	Released (2.1.4-5ubuntu1+esm3)
	kinetic	Needed
	lunar	Needed
	trusty	Released (1.5.2-3+deb8u3ubuntu1~esm6)
	upstream	Released (2.0.9.2, 2.1.4.2, 2.2.6.1, 3.0.4.1)
	xenial	Released (1.6.4-3ubuntu0.2+esm4)
	Patches: upstream: https://github.com/rack/rack/commit/4e33ad10bf5f16d25c156f905bcc548e7f787bc3 (v2.0.9.2) upstream: https://github.com/rack/rack/commit/9b5fb5c7ef0e39b959a6c5c0005d9af44a29d6f8 (v2.1.4.2) upstream: https://github.com/rack/rack/commit/ee25ab9a7ee981d7578f559701085b0cf39bde77 (v2.2.6.1)

Severity score breakdown

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

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1029832

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