CVE-2020-12267

setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

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://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450	Exploit Issue Tracking Third Party Advisory
https://codereview.qt-project.org/c/qt/qtbase/+/291706	Patch Third Party Advisory
https://security.gentoo.org/glsa/202007-38	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:qt:qt:5.14.1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-04-27 02:15

Updated : 2023-01-27 18:42

NVD link : CVE-2020-12267

Mitre link : CVE-2020-12267

CVE.ORG link : CVE-2020-12267

JSON object : View

Products Affected

qt

qt

CWE

CWE-416

Use After Free

{"id": "CVE-2020-12267", "cveTags": [], "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": "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": "2020-04-27T02:15:12.443", "references": [{"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.gentoo.org/glsa/202007-38", "tags": ["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": "setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock."}, {"lang": "es", "value": "setMarkdown en Qt versiones anteriores a la versi\u00f3n5.14.2, tiene una vulnerabilidad de uso de la memoria previamente liberada relacionada con la funci\u00f3n QTextMarkdownImporter::insertBlock."}], "lastModified": "2023-01-27T18:42:26.970", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qt:qt:5.14.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4D50AA1-3D3A-463F-9015-4BB82D59E85B"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}