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CVE-2019-5427

c3p0 version < 0.9.5.4 may be exploited by a billion laughs attack when loading XML configuration due to missing protections against recursive entity expansion when loading configuration.

Published: Apr 22, 2019Updated: Sep 5, 2025 Sources: CVE List NVD GHSA BDUCWE-776
NVD MITRE
7.5CVSSHIGH
EPSS Score
4.9%
Top 9.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Billion laughs attack in c3p0

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-776

Affected Products

com.mchange:c3p0MavenOSS Libraries
Retail Returns ManagementOracle Corp.
On-prem
Databases / relational
Retail Point-of-ServiceOracle Corp.
On-prem
Databases / relational
Fusion Middleware MapViewerOracle Corp.
On-prem
Databases / relational
Primavera UnifierOracle Corp.
On-premWeb App
Enterprise Software / itsm-monitoring
mavenpackage-ecosystemOSS Libraries
oracle corp.commercialUSDatabasesaka oracle
and 28 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2019-5427
nvd.nist.gov
https://hackerone.com/reports/509315
hackerone.com
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFIVX6HOVNLAM7W3SUAMHYRNLCVQSAWR
lists.fedoraproject.org
and 16 more references View all →

Timeline

Published
Apr 22, 2019
Last Updated
Sep 5, 2025

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