A vulnerability in Apache HTTP Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.
The vulnerability is due to improper bounds checks when the affected software is reading an HTTP header. An attacker could exploit this vulnerability by sending a crafted request to a targeted system. A successful exploit could trigger an out-of-bounds access condition causing the affected software to crash and resulting in a DoS condition on the system.
Apache has confirmed the vulnerability and released software updates.
CVE number – CVE-2018-1301
To exploit this vulnerability, an attacker must send a crafted request to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources.
This vulnerability is considered low risk for common server usage and difficult to exploit in non-debug mode.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators are advised to monitor affected systems.
Apache has released a security advisory at the following link: Possible out of bound access after failure in reading the HTTP request (CVE-2018-1301)
Apache has released software updates at the following link: Apache HTTP Server 2.4.30
Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.