CVE-2022-28738
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Ruby
PublishedMay 9, 2022
First seenMay 9, 2022
How to fix
Update
- ruby-lang ruby3.0.4, 3.1.2 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ruby-lang ruby | 3.0.0 ≤ v < 3.0.4, 3.1.0 ≤ v < 3.1.2 | 3.0.4, 3.1.2 |
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