CVE-2020-5212

In NetHack before 3.6.5, an extremely long value for the MENUCOLOR configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5.

CVSS v3 5.0 MEDIUM
CVSS v2.0 7.5 HIGH

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.7

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56	Third Party Advisory
https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nethack:nethack:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:33

Type	Values Removed	Values Added
References	~~() https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56 - Third Party Advisory~~	() https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56 - Third Party Advisory
CVSS	v2 : ~~7.5~~ v3 : ~~9.8~~	v2 : 7.5 v3 : 5.0

Information

Published : 2020-01-28 18:15

Updated : 2024-11-21 05:33

NVD link : CVE-2020-5212

Mitre link : CVE-2020-5212

CVE.ORG link : CVE-2020-5212

JSON object : View

Products Affected

nethack

nethack

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2020-5212", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.7, "exploitabilityScore": 0.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-01-28T18:15:11.337", "references": [{"url": "https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/NetHack/NetHack/security/advisories/GHSA-g89f-m829-4m56", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "In NetHack before 3.6.5, an extremely long value for the MENUCOLOR configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5."}, {"lang": "es", "value": "En NetHack versiones anteriores a 3.6.5, un valor extremadamente largo para la opci\u00f3n del archivo de configuraci\u00f3n MENUCOLOR puede causar un desbordamiento del b\u00fafer resultando en un bloqueo o una ejecuci\u00f3n de c\u00f3digo remota/escalada de privilegios. Esta vulnerabilidad afecta a los sistemas que tienen instalado suid/sgid de NetHack y sistemas compartidos que permiten a usuarios cargar sus propios archivos de configuraci\u00f3n. Los usuarios deber\u00edan actualizar a NetHack versi\u00f3n 3.6.5."}], "lastModified": "2024-11-21T05:33:41.413", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nethack:nethack:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E31D988-1D9F-4AC6-9A4E-C4A96A2287F9", "versionEndExcluding": "3.6.5"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}