CVE-2020-36405

Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22850	Exploit Issue Tracking Patch Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/keystone/OSV-2020-789.yaml	Technical Description
https://github.com/keystone-engine/keystone/releases	Release Notes Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:keystone-engine:keystone_engine:0.9.2:*:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-07-01 03:15

Updated : 2024-02-28 18:28

NVD link : CVE-2020-36405

Mitre link : CVE-2020-36405

CVE.ORG link : CVE-2020-36405

JSON object : View

Products Affected

keystone-engine

keystone_engine

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2020-36405", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-07-01T03:15:07.963", "references": [{"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22850", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/keystone/OSV-2020-789.yaml", "tags": ["Technical Description"], "source": "cve@mitre.org"}, {"url": "https://github.com/keystone-engine/keystone/releases", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken."}, {"lang": "es", "value": "Keystone Engine versi\u00f3n 0.9.2, presenta un uso de la memoria previamente liberada en la funci\u00f3n llvm_ks::X86Operand::getToken"}], "lastModified": "2021-07-06T21:07:03.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:keystone-engine:keystone_engine:0.9.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A870DACA-C48D-4EF6-AAE0-FE1C637A0CF5"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}