Grissess

**Name of the Vulnerable Software and Affected Versions** openvpn-auth-ldap version 2.0.4 **Description** The issue is a buffer overflow in the `extract openvpn cr` function in `openvpn-cr.c` that allows attackers with a valid LDAP username and control over the challenge/response password field to cause a buffer overflow by passing a string with more than 14 colons into this field. **Recommendations** For openvpn-auth-ldap version 2.0.4, as a temporary workaround, consider restricting the input to the challenge/response password field to prevent strings with more than 14 colons from being passed. At the moment, there is no information about a newer version that contains a fix for this vulnerability.