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CVE-2021-40511

nvd nist
Published: Jun 21, 2022Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.

Affected (1)

Products: Obdasystems: Mastro
Obdasystems
1 product
Mastro
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mastro
Version 1.0

Related CWEs

CWE-776
Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

References (4)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ProductVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ProductVendor Advisory

Timeline

No history available yet.