CVE-2020-6840

Public Exploit

Description

In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.42%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mruby/mruby/issues/4927 patch third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-6840?
CVE-2020-6840 has been scored as a critical severity vulnerability.
How to fix CVE-2020-6840?
To fix CVE-2020-6840, 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-2020-6840 being actively exploited in the wild?
It is possible that CVE-2020-6840 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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