CVE-2018-12249

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.66%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mruby/mruby/issues/4037 third party advisory issue tracking exploit
https://github.com/mruby/mruby/commit/faa4eaf6803bd11669bc324b4c34e7162286bfa3 third party advisory patch
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2018-12249?
CVE-2018-12249 has been scored as a high severity vulnerability.
How to fix CVE-2018-12249?
To fix CVE-2018-12249, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-12249 being actively exploited in the wild?
It is possible that CVE-2018-12249 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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