Resource exhaustion in Rack

CVE-2023-27530

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.018 (76.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Rack
  • Debian Debian_linux — versions 10.0, 11.0
  • N/a Https://github.com/rack/rack — versions 3.0.4.2, 2.2.6.3, 2.1.4.3, 2.0.9.3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-27530?
CVE-2023-27530 is a high-severity vulnerability in Rack, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-03-10.
How severe is CVE-2023-27530?
High severity. CVSS v3 base score is 7.5 out of 10.