CVE-2018-12248

An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b	Patch Third Party Advisory
https://github.com/mruby/mruby/issues/4038	Issue Tracking Third Party Advisory
https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b	Patch Third Party Advisory
https://github.com/mruby/mruby/issues/4038	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-06-12 14:29

Updated : 2024-11-21 03:44

NVD link : CVE-2018-12248

Mitre link : CVE-2018-12248

CVE.ORG link : CVE-2018-12248

JSON object : View

Products Affected

mruby

mruby

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2018-12248", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-06-12T14:29:00.400", "references": [{"url": "https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/mruby/mruby/issues/4038", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/mruby/mruby/issues/4038", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber."}, {"lang": "es", "value": "Se ha descubierto un problema en mruby 1.4.1. Hay una sobrelectura de b\u00fafer basada en memoria din\u00e1mica (heap) asociada con OP_ENTER debido a que mrbgems/mruby-fiber/src/fiber.c no extiende la pila en casos en los que hay muchos argumentos en fiber."}], "lastModified": "2024-11-21T03:44:51.500", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4A86E77-13CC-41B4-AB91-4A7C513791BC"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}