CVE-2022-28738

Description

A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.36%
Vendor Advisory gentoo.org Vendor Advisory ruby-lang.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/1220911 third party advisory permissions required
https://www.ruby-lang.org/en/news/2022/04/12/double-free-in-regexp-compilation-cve-2022-28738/ vendor advisory
https://security-tracker.debian.org/tracker/CVE-2022-28738 third party advisory patch
https://security.netapp.com/advisory/ntap-20220624-0002/ third party advisory
https://security.gentoo.org/glsa/202401-27 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-28738?
CVE-2022-28738 has been scored as a critical severity vulnerability.
How to fix CVE-2022-28738?
To fix CVE-2022-28738, 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-2022-28738 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-28738 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.
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