CVE-2022-23517

high

Description

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.

References

https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html

https://hackerone.com/reports/1684163

https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w

https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979

Details

Source: Mitre, NVD

Published: 2022-12-14

Updated: 2024-02-01

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High