Stack-based Buffer Overflow in mruby Affects Multiple Versions
CVE-2020-6839

9.8CRITICAL

Key Information:

Vendor

Mruby

Status
Mruby
Vendor
CVE Published:
11 January 2020

What is CVE-2020-6839?

A stack-based buffer overflow vulnerability exists in mruby versions up to 2.1.0, specifically in the function mrb_str_len_to_dbl located in string.c. This flaw allows an attacker to manipulate the function's input, potentially leading to arbitrary code execution and compromising system integrity. It is crucial for users of affected versions to apply patches and mitigate risks associated with this vulnerability.

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References

https://github.com/mruby/mruby/issues/4929
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

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