CVE-2020-24996

There is an invalid memory access in the function TextString::~TextString() located in Catalog.cc in Xpdf 4.0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftohtml binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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://forum.xpdfreader.com/viewtopic.php?f=3&t=42028	Exploit Vendor Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:xpdfreader:xpdf:4.0.2:*:*:*:*:*:*:*

History

21 Nov 2024, 05:16

Type	Values Removed	Values Added
References	~~() https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028 - Exploit, Vendor Advisory~~	() https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028 - Exploit, Vendor Advisory

Information

Published : 2020-09-03 23:15

Updated : 2024-11-21 05:16

NVD link : CVE-2020-24996

Mitre link : CVE-2020-24996

CVE.ORG link : CVE-2020-24996

JSON object : View

Products Affected

xpdfreader

xpdf

CWE

CWE-665

Improper Initialization

{"id": "CVE-2020-24996", "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": "2020-09-03T23:15:09.760", "references": [{"url": "https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028", "tags": ["Exploit", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-665"}]}], "descriptions": [{"lang": "en", "value": "There is an invalid memory access in the function TextString::~TextString() located in Catalog.cc in Xpdf 4.0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftohtml binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact."}, {"lang": "es", "value": "Se presenta un acceso a la memoria no v\u00e1lido en la funci\u00f3n TextString::~TextString() ubicada en el archivo Catalog.cc en Xpdf versi\u00f3n 4.0.2. Puede ser activado (por ejemplo) mediante el env\u00edo de un archivo PDF dise\u00f1ado hacia el binario pdftohtml, que puede permitir a un atacante remoto causar una Denegaci\u00f3n de Servicio (falla de Segmentaci\u00f3n) o posiblemente tener otro impacto no especificado"}], "lastModified": "2024-11-21T05:16:25.017", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:xpdfreader:xpdf:4.0.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4A08C08-5321-4B5B-ACD5-7FA191DCF3E2"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}

7.8 /10