CVE-2022-44570

Published: 9 February 2023

A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be 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) Available with Ubuntu Pro
	focal	Released (2.0.7-2ubuntu0.1+esm3) Available with Ubuntu Pro
	jammy	Released (2.1.4-5ubuntu1+esm3) Available with Ubuntu Pro
	kinetic	Ignored (end of life, was needed)
	lunar	Not vulnerable (2.2.4-3)
	mantic	Not vulnerable (2.2.4-3)
	trusty	Released (1.5.2-3+deb8u3ubuntu1~esm6) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.4.1)
	xenial	Released (1.6.4-3ubuntu0.2+esm4) Available with Ubuntu Pro
	Patches: upstream: https://github.com/rack/rack/commit/52721ae0b730e3920ad5375dfd5a3ea9b4f9e359 upstream: https://github.com/rack/rack/commit/f66ef5c8255dcea82c1b2665fc9ab948b76bb437 upstream: https://github.com/rack/rack/commit/f6d4f528f2df1318a6612845db0b59adc7fe8fc1

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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