A denial of service vulnerability in the multipart parsing component of Rack fixed in 2.0.9.2, 2.1.4.2, 2.2.4.1 and 3.0.0.1 could allow an attacker tocraft input that can cause RFC2183 multipart boundary parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted.
The product does not properly control the allocation and maintenance of a limited resource.
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
| Link | Tags |
|---|---|
| https://hackerone.com/reports/1639882 | third party advisory permissions required |
| https://www.debian.org/security/2023/dsa-5530 | vendor advisory |
| https://security.netapp.com/advisory/ntap-20231208-0014/ |