Use-After-Free Vulnerability in mruby by Mruby Team
CVE-2020-6840

9.8CRITICAL

Key Information:

Vendor

Mruby

Status
Mruby
Vendor
CVE Published:
11 January 2020

What is CVE-2020-6840?

In the mruby version 2.1.0, a use-after-free vulnerability exists in the hash_slice function located in the mrbgems/mruby-hash-ext/src/hash-ext.c file. This flaw can allow an attacker to exploit memory management issues, potentially leading to unexpected behavior or software crashes. Proper mitigations and timely updates are essential to safeguard applications utilizing mruby from possible security threats.

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References

https://github.com/mruby/mruby/issues/4927
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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