CVE-2010-3190 is a vulnerability in the way that certain versions of Apache HTTP Server handle multiple overlapping ranges of bytes in an HTTP request. When exploited, an attacker could potentially cause a denial of service by consuming excessive resources on the server. The vulnerability was given a CVSS score of 7.8 out of 10, indicating a high severity level.
The vulnerability was discovered and reported by security researcher Kingcope in August 2010. Apache released a patch to address the issue soon after it was reported. However, a few weeks later, a public exploit was published which allowed attackers to easily exploit the vulnerability. This led to a surge in attacks targeting servers running vulnerable versions of Apache HTTP Server.
In response, various security vendors and organizations issued alerts and recommendations to help mitigate the risk posed by CVE-2010-3190. System administrators were advised to update their Apache installations to the latest version, or to apply the relevant patch if an upgrade was not feasible. Additionally, some suggested configuring web application firewalls to block requests that exploit the vulnerability. By taking these measures, organizations could reduce the likelihood of falling victim to an attack that exploits this particular vulnerability.