CVE-2019-14812

A flaw was found in all ghostscript versions 9.x before 9.50, in the .setuserparams2 procedure where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. A specially crafted PostScript file could disable security protection and then have access to the file system, or execute arbitrary commands.

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
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=885444fcbe10dc42787ecb76686c8ee4dd33bf33
https://access.redhat.com/security/cve/cve-2019-14812	Third Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=701444	Permissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14812	Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBUC4DBBJTRFNCR3IODBV4IXB2C2HI3V/
https://security.gentoo.org/glsa/202004-03	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-11-27 14:15

Updated : 2023-11-07 03:05

NVD link : CVE-2019-14812

Mitre link : CVE-2019-14812

CVE.ORG link : CVE-2019-14812

JSON object : View

Products Affected

artifex

ghostscript

fedoraproject

fedora

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

CWE-648

Incorrect Use of Privileged APIs

{"id": "CVE-2019-14812", "cveTags": [], "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}], "cvssMetricV30": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 3.9}], "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": "2019-11-27T14:15:11.220", "references": [{"url": "http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=885444fcbe10dc42787ecb76686c8ee4dd33bf33", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/cve-2019-14812", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugs.ghostscript.com/show_bug.cgi?id=701444", "tags": ["Permissions Required"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14812", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBUC4DBBJTRFNCR3IODBV4IXB2C2HI3V/", "source": "secalert@redhat.com"}, {"url": "https://security.gentoo.org/glsa/202004-03", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-732"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-648"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in all ghostscript versions 9.x before 9.50, in the .setuserparams2 procedure where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. A specially crafted PostScript file could disable security protection and then have access to the file system, or execute arbitrary commands."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en todas las versiones de ghostscript 9.x anteriores a la versi\u00f3n 9.50, en el procedimiento .setuserparams2 donde no aseguraba apropiadamente sus llamadas privilegiadas, permitiendo que los scripts omitieran las restricciones \"-dSAFER\". Un archivo PostScript especialmente dise\u00f1ado podr\u00eda deshabilitar la protecci\u00f3n de seguridad y luego tener acceso al sistema de archivos o ejecutar comandos arbitrarios."}], "lastModified": "2023-11-07T03:05:19.013", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D888AD41-9C8D-44AA-8820-862107522BFF", "versionEndExcluding": "9.50", "versionStartIncluding": "9.00"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}