H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-04-27T14:08:35.112Z

Updated: 2024-08-02T14:37:15.566Z

Reserved: 2023-04-18T16:13:15.881Z

Link: CVE-2023-30847

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-04-27T15:15:13.833

Modified: 2023-05-09T18:21:39.807

Link: CVE-2023-30847

cve-icon Redhat

No data.