CVE-2022-0631
NixOS vulnerability analysis and mitigation

Overview

A Heap-based Buffer Overflow vulnerability was discovered in Homebrew mruby versions prior to 3.2, identified as CVE-2022-0631. The vulnerability was disclosed on February 18, 2022, affecting the mruby software package (NVD, CVE).

Technical details

The vulnerability is classified as a Heap-based Buffer Overflow (CWE-122). It received a CVSS v3.1 base score of 9.8 (CRITICAL) from NIST with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. However, the original CNA (huntr.dev) assessed it with a CVSS v3.0 base score of 5.9 (MEDIUM) with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L (NVD).

Impact

The vulnerability could potentially allow attackers to execute arbitrary code, cause denial of service, or gain unauthorized access to sensitive information through buffer overflow exploitation (NVD).

Mitigation and workarounds

The vulnerability was patched in mruby version 3.2. Users are advised to upgrade to this version or later to mitigate the risk. A patch was committed to the mruby repository to address the issue (GitHub Patch).

Additional resources


SourceThis report was generated using AI

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-14330CRITICAL9.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
NoYesDec 09, 2025
CVE-2025-14329HIGH8.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox_esr
NoYesDec 09, 2025
CVE-2025-14333HIGH8.1
  • NixOSNixOS
  • firefox-esr
NoYesDec 09, 2025
CVE-2025-14332HIGH7.3
  • NixOSNixOS
  • thunderbird
NoYesDec 09, 2025
CVE-2025-14331MEDIUM6.5
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management