CVE-2022-0623CWE-125

Out-of-bounds Read in mruby/mruby

Medium · published February 17, 2022

CVSS v3.0
6.5
EPSS
2%
Percentile
76.1
In the wild
Unconfirmed
What it is

⚠️ An out-of-bounds read in Homebrew's mruby could leave sensitive data exposed, like a library that forgets to code-lock a few shelves! 📚 Imagine you're at a library, and a few bookshelves are not properly labeled. Anyone can accidentally pull a book that contains confidential information because the shelves weren't checked — that's what’s happening here with mruby! This vulnerability allows an attacker to read sensitive data that they shouldn’t have access to, potentially leaking crucial information. While it's not actively exploited yet, the risk of unauthorized data exposure is concerning and can lead to serious privacy implications.

Put simply

Imagine you're at a library, and a few bookshelves are not properly labeled. Anyone can accidentally pull a book that contains confidential information because the shelves weren't checked — that's what’s happening here with mruby! The vulnerability arises from improper handling of memory, allowing attackers to read beyond the allocated bounds in certain situations. This could result in the unintentional disclosure of sensitive information from memory.

What to do

This vulnerability allows an attacker to read sensitive data that they shouldn’t have access to, potentially leaking crucial information. While it's not actively exploited yet, the risk of unauthorized data exposure is concerning and can lead to serious privacy implications. Upgrade mruby to version 3.2 or later to patch this vulnerability. Review your code to ensure proper memory management practices are enforced. Regularly audit your Homebrew packages to stay updated with security patches. You've got this! By taking action now, you'll be keeping sensitive data safe and sound! 🛡️

The record
Technical detail
CVSS v3.0
6.5 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.01637 · 76.1th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2022-02-17T06:30Z
EPSS history
Timeline
  • 17 FEB 06:30Z
    Out-of-bounds Read in mruby/mruby
    cvelistv5