Vulnerability · Published Feb 19, 2022 · Assigned by @huntrdev
CVE-2022-0632NULL Pointer Dereference in mruby/mruby
Medium 5.5
In plain English
A medium-severity null pointer dereference in mruby/mruby from mruby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)5.5Medium
Exploit odds (30 days)0.8%top 42.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | mruby | 3.1.0-r0 | ALPINE-CVE-2022-0632 |
| Alpine:v3.21 | mruby | 3.1.0-r0 | ALPINE-CVE-2022-0632 |
| Alpine:v3.22 | mruby | 3.1.0-r0 | ALPINE-CVE-2022-0632 |
| Alpine:v3.23 | mruby | 3.1.0-r0 | ALPINE-CVE-2022-0632 |
| Alpine:v3.24 | mruby | 3.1.0-r0 | ALPINE-CVE-2022-0632 |
| Ubuntu:22.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-0632 |
| Ubuntu:24.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-0632 |
| Ubuntu:25.10 | mruby | no fix listed | UBUNTU-CVE-2022-0632 |
| Ubuntu:26.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-0632 |
| Ubuntu:26.10 | mruby | no fix listed | UBUNTU-CVE-2022-0632 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mruby | mruby/mruby | unspecified – before 3.2 |
Weakness: CWE-476 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://huntr.dev/bounties/3e5bb8f6-30fd-4553-86dd-761e9459ce1b x_refsource_CONFIRM
- https://github.com/mruby/mruby/commit/44f591aa8f7091e6ca6cb418e428ae6d4ceaf77d x_refsource_MISC