CVE-2020-15866

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Source
https://cve.org/CVERecord?id=CVE-2020-15866
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-15866.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-15866
Downstream
Published
2020-07-21T15:15:14.537Z
Modified
2026-03-13T00:30:34.691283Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

mruby through 2.1.2-rc has a heap-based buffer overflow in the mrbyieldwithclass function in vm.c because of incorrect VM stack handling. It can be triggered via the stackcopy function.

References

Affected packages

Git / github.com/mruby/mruby

Affected ranges

Type
GIT
Repo
https://github.com/mruby/mruby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
f9d113f7647121f8578742a2a9ac256ece365e3f
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b6b9c57f247a26fb5dbea129cd81fcc9b7d485a3
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.1.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.1.2-rc"
        }
    ]
}

Affected versions

1.*
1.0.0
1.1.0
1.2.0
1.3.0
1.4.0
1.4.1
2.*
2.0.0
2.0.1
2.1.0
2.1.0-rc
2.1.1
2.1.1-rc
2.1.1-rc2

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-15866.json"