CVE-2020-8941

An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_inet_pton using an attacker controlled klinux_addr_buffer parameter. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 8fed5e334131abaf9c5e17307642fbf6ce4a57ec

CVSS v3 5.3 MEDIUM
CVSS v2.0 2.1 LOW

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec	Patch Third Party Advisory US Government Resource
https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec	Patch Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:39

Type	Values Removed	Values Added
CVSS	v2 : ~~2.1~~ v3 : ~~5.5~~	v2 : 2.1 v3 : 5.3
References	~~() https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec - Patch, Third Party Advisory, US Government Resource~~	() https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec - Patch, Third Party Advisory, US Government Resource

Information

Published : 2020-12-15 15:15

Updated : 2024-11-21 05:39

NVD link : CVE-2020-8941

Mitre link : CVE-2020-8941

CVE.ORG link : CVE-2020-8941

JSON object : View

Products Affected

google

asylo

CWE

CWE-120

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

CWE-125

Out-of-bounds Read

{"id": "CVE-2020-8941", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "cve-coordination@google.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 1.0}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2020-12-15T15:15:13.503", "references": [{"url": "https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec", "tags": ["Patch", "Third Party Advisory", "US Government Resource"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/google/asylo/commit/8fed5e334131abaf9c5e17307642fbf6ce4a57ec", "tags": ["Patch", "Third Party Advisory", "US Government Resource"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_inet_pton using an attacker controlled klinux_addr_buffer parameter. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 8fed5e334131abaf9c5e17307642fbf6ce4a57ec"}, {"lang": "es", "value": "Una vulnerabilidad de lectura de memoria arbitraria en Asylo versiones hasta 0.6.0, permite a un atacante que no es confiable realizar una llamada a la funci\u00f3n enc_untrusted_inet_pton usando un par\u00e1metro klinux_addr_buffer controlado por el atacante. El tama\u00f1o del par\u00e1metro no es comprobado, permitiendo al atacante leer ubicaciones de memoria fuera del tama\u00f1o de b\u00fafer previsto, incluyendo unas direcciones de memoria dentro del enclave seguro. Recomendamos actualizar m\u00e1s all\u00e1 del commit 8fed5e334131abaf9c5e17307642fbf6ce4a57ec"}], "lastModified": "2024-11-21T05:39:42.520", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D4356338-A28E-442E-BD14-1A927E3824E9", "versionEndIncluding": "0.6.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}