CVE-2023-27530

Publication date 10 March 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby-rack	24.04 LTS noble	Not affected
	23.10 mantic	Fixed 2.2.4-3ubuntu0.2
	23.04 lunar	Ignored
	22.10 kinetic	Ignored
	22.04 LTS jammy	Fixed 2.1.4-5ubuntu1+esm4 Ubuntu Pro
	20.04 LTS focal	Fixed 2.0.7-2ubuntu0.1+esm4 Ubuntu Pro
	18.04 LTS bionic	Ignored
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Ignored

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Notes

iconstantin

Intrusive backport for older releases.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby-rack	Upstream: 8e8869d Upstream: 9aac375 Upstream: b632718 Upstream: 5f6e2fc

Severity score breakdown

Parameter	Value
Base score	7.5 · High
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