mod_ssl hook functions format string vulnerability

The remote host is using a version vulnerable of mod_ssl which is older than 2.8.19. There is a format string condition in the log functions of the remote module which may allow an attacker to execute arbitrary code on the remote host. *** Some vendors patched older versions of mod_ssl, so this *** might be a false positive. Check with your vendor to determine *** if you have a version of mod_ssl that is patched for this *** vulnerability
Upgrade to version 2.8.19 or newer