The remote host is missing an update to the system as announced in the referenced advisory.
The following package is affected: apache
CVE-2005-1268 Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
Solution: Update your system with the appropriate patches or software upgrades.