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.
02 Description
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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.88% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-04-22 20:52Z7 YR AGO
- Last updated
- 2024-08-04 19:54Z2 YR AGO
- Reserved
- 2019-01-04
- Assigning CNA
- hackerone
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')Base
- Data version
- 5.1
- Document digest
- 37be611a2c7c25ed91194718ad44cf0b2c81c0f158d81b63e7071553df0515b4
05 Affected products
06 References
- lists.fedoraproject.orgFEDORA-2019-cb14e234fchttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFIVX6HOVNLAM7W3SUAMHYRNLCVQSAWR/
- lists.fedoraproject.orgFEDORA-2019-063672154ahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQ47OFV57Y2DAHMGA5H3JOL4WHRWRFN4/
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2020.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
- hackerone.comhttps://hackerone.com/reports/509315
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2021.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.html
07 Fixed in
Debian 12
- c3p0 Fixed in 0.9.1.2-10.1~deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- c3p0 Fixed in 0.9.1.2-10.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- c3p0 Fixed in 0.9.1.2-10.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- c3p0 Fixed in 0.9.1.2-9+deb8u1ubuntu0.18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- c3p0 Fixed in 0.9.1.2-10ubuntu0.20.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- c3p0 Fixed in 0.9.1.2-10ubuntu1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- c3p0 Fixed in 0.9.1.2-10ubuntu1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- c3p0 Fixed in 0.9.1.2-9+deb8u1ubuntu0.14.04.1~esm1Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- c3p0 Fixed in 0.9.1.2-9+deb8u1ubuntu0.16.04.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.