Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.
[
{
"product": "Apache log4net",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Apache log4net up to 2.0.8"
}
]
}
]
issues.apache.org/jira/browse/LOG4NET-575
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security.netapp.com/advisory/ntap-20220909-0001/
www.oracle.com/security-alerts/cpuApr2021.html
www.oracle.com/security-alerts/cpuapr2022.html
www.oracle.com/security-alerts/cpujan2021.html