CVE-2022-23517

Inefficient Regular Expression Complexity in rails-html-sanitizer

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.20%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory hackerone.com Third-Party Advisory debian.org
Affected: rails rails-html-sanitizer
Published at:
Updated at:

References

Link Tags
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w third party advisory
https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979 third party advisory patch
https://hackerone.com/reports/1684163 third party advisory permissions required
https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2022-23517?
CVE-2022-23517 has been scored as a high severity vulnerability.
How to fix CVE-2022-23517?
To fix CVE-2022-23517, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23517 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23517 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23517?
CVE-2022-23517 affects rails rails-html-sanitizer.
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