Intrusion Prevention

H2O.Web.Server.Heap.Buffer.Overflow

Description

This indicates an attack attempt to exploit a Heap Buffer Overflow Vulnerability in H2O Web Server.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted request. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted request.

Affected Products

H2O Web Server prior to 2.2.5

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor:
https://github.com/h2o/h2o/issues/1775

CVE References

CVE-2018-0608