Elijahglover

**Name of the Vulnerable Software and Affected Versions** H2O versions 2.3.0-beta2 and prior **Description** H2O is an HTTP server. When the reverse proxy handler tries to process a certain type of invalid HTTP request, it tries to build an upstream URL by reading from an uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. **Recommendations** For H2O versions 2.3.0-beta2 and prior, users should upgrade to commit f010336 or later to fix the issue.