CVE-2019-5427 – c3p0: loading XML configuration leads to denial of service

https://notcve.org/view.php?id=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. En c3p0 versiones <0.9.5.4, puede ser explotada por un ataque de tipo a billion laughs al cargar la configuración XML producto de la falta de protecciones faltantes contra la expansión recursiva de la entidad al cargar la configuración. • https://hackerone.com/reports/509315 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFIVX6HOVNLAM7W3SUAMHYRNLCVQSAWR https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQ47OFV57Y2DAHMGA5H3JOL4WHRWRFN4 https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/security-alerts/cpujan2021.html https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.oracle. • CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •