What’s Vulnerable › Vulnerabilities

CVE-2018-12249

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-06-12 · updated 2026-06-17
• Weakness: CWE-476

Description

An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class_real because "class BasicObject" is not properly supported in class.c.

Affected products

• Debian Linux: 9.0
• mruby/mruby: 1.4.1

References

• https://github.com/mruby/mruby/commit/faa4eaf6803bd11669bc324b4c34e7162286bfa3
• https://github.com/mruby/mruby/issues/4037
• https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html
• https://github.com/mruby/mruby/commit/faa4eaf6803bd11669bc324b4c34e7162286bfa3
• https://github.com/mruby/mruby/issues/4037
• https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html

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