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ALPINE-CVE-2022-28738

ALPINE-CVE-2022-28738 PUBLISHED CVSS 9.800000190734863 CRITICAL

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.

Risk Scores

CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Alpine:v3.23ruby0, 0, 0
Alpine:v3.20ruby0, 0, 0
Alpine:v3.22ruby0, 0, 0
Alpine:v3.21ruby0, 0, 0
Alpine:v3.19ruby2.3.1-r0, 2.2.4-r0, 2.2.3-r1
Alpine:v3.15ruby2.6.4-r0, 1.8.7_p160-r2, 1.8.7_p160-r3
Alpine:v3.16ruby0, 2.7.1-r3, 2.7.1-r2
Alpine:v3.18ruby2.7.3-r0, 1.8.7_p160-r2, 1.9.3_p194-r0
Alpine:v3.17ruby1.9.3_p194-r0, 1.9.3_p286-r0, 1.9.3_p286-r1

Timeline

  • May 9, 2022 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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