CVE-2020-12267 - Vulnerability Details - OpenCVE

Description

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

Published: 2020-04-27

Score: 9.8 Critical

EPSS: 2.4% Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-4580	setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.02408.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
https://codereview.qt-project.org/c/qt/qtbase/+/291706
https://nvd.nist.gov/vuln/detail/CVE-2020-12267
https://security.gentoo.org/glsa/202007-38
https://www.cve.org/CVERecord?id=CVE-2020-12267

History

No history.

Subscriptions

Qt Qt

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-04-27T01:31:42.000Z

Updated: 2024-08-04T11:48:58.414Z

Reserved: 2020-04-27T00:00:00.000Z

Link: CVE-2020-12267

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-04-27T02:15:12.443

Modified: 2026-06-17T02:51:32.197

Link: CVE-2020-12267

Redhat

Severity : Moderate

Publid Date: 2020-04-27T00:00:00Z

Links: CVE-2020-12267 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

CWE-416
Use After Free

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-07-27T02:06:10.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706"}, {"name": "GLSA-202007-38", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/202007-38"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-12267", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450", "refsource": "MISC", "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450"}, {"name": "https://codereview.qt-project.org/c/qt/qtbase/+/291706", "refsource": "CONFIRM", "url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706"}, {"name": "GLSA-202007-38", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202007-38"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T11:48:58.414Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706"}, {"name": "GLSA-202007-38", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202007-38"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-12267", "datePublished": "2020-04-27T01:31:42.000Z", "dateReserved": "2020-04-27T00:00:00.000Z", "dateUpdated": "2024-08-04T11:48:58.414Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:qt:qt:5.14.1:*:*:*:*:*:*:*", "matchCriteriaId": "E4D50AA1-3D3A-463F-9015-4BB82D59E85B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2020-12267", "lastModified": "2026-06-17T02:51:32.197", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-27T02:15:12.443", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202007-38"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://codereview.qt-project.org/c/qt/qtbase/+/291706"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202007-38"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}