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CVE-2023-27530

Published: 10 March 2023

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.

Notes

AuthorNote
iconstantin
Intrusive backport for older releases.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ruby-rack
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
focal Needs triage

jammy Needs triage

upstream
Released (2.2.6.4-1)
bionic Ignored
(intrusive backport)
trusty Ignored
(intrusive backport)
xenial Ignored
(intrusive backport)
lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

Patches:
upstream: https://github.com/rack/rack/commit/8e8869d625e73e16b576b6d31b50208e9ec8002f (main)
upstream: https://github.com/rack/rack/commit/9aac3757fe19cdb0476504c9245170115bec9668 (v2.2.6.3)
upstream: https://github.com/rack/rack/commit/b632718265fa5ffa547b060331341a1e216b4ffa (2.1.4.3)
upstream: https://github.com/rack/rack/commit/5f6e2fcbbdbff2dfaa21baa693e9d23d12ac1459 (v2.0.9.3)

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