CVE-2018-10199

Description

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy(). An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.52% Top 20%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mruby/mruby/commit/b51b21fc63c9805862322551387d9036f2b63433 patch
https://github.com/mruby/mruby/issues/4001 third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-10199?
CVE-2018-10199 has been scored as a critical severity vulnerability.
How to fix CVE-2018-10199?
To fix CVE-2018-10199, 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-2018-10199 being actively exploited in the wild?
It is possible that CVE-2018-10199 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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