Researchers at Veracode discovered that nearly 41% of enterprise applications using the Ghost-ridden gethostbyname function. Vulnerability is termed as GHOST because it let attacker take control of the victims system remotely. System is vulnerable to GHOST if version of EGLIBC is older than below listed versions Ubuntu 12.04 LTS 2.15-0 ubuntu10.10 and. 10 and. Debian 7 LTS – 2.13-38+deb7u7. Software that initiate network connection, log processing and mail. filtering can be vulnerable as it uses gethostby name function.”]
Source: https://securityaffairs.co/wordpress/33264/security/ghost-threat-business-apps.html