CVE-2023-27530

Description

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.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 1.98%• Percentile: 84%

Techniques & Countermeasures

• CWE-400•Uncontrolled Resource Consumption

  The product does not properly control the allocation and maintenance of a limited resource.

• CWE-770•Allocation of Resources Without Limits or Throttling

  The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

• debian•debian_linux

  10.0 | 11.0

• rack•rack

  < 2.0.9.3 | ≥ 2.1.0, < 2.1.4.3 | ≥ 2.2.0, < 2.2.6.3 | ≥ 3.0.0, < 3.0.4.2

References (4)

• https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388
• https://lists.debian.org/debian-lts-announce/2023/04/msg00017.html
• https://www.debian.org/security/2023/dsa-5530
• https://security.netapp.com/advisory/ntap-20231208-0015/