CVE Vulnerabilities

CVE-2022-1071

Use After Free

Published: Mar 26, 2022 | Modified: Nov 21, 2024
CVSS 3.x
8.2
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Mruby Mruby * 3.1 (including)
Mruby Ubuntu bionic *
Mruby Ubuntu focal *
Mruby Ubuntu impish *
Mruby Ubuntu kinetic *
Mruby Ubuntu lunar *
Mruby Ubuntu mantic *
Mruby Ubuntu oracular *
Mruby Ubuntu trusty *
Mruby Ubuntu xenial *

Potential Mitigations

References