CVEvulnerability

CVE-2023-30847

8.2 HIGH Published 2023-04-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-04-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weaknesses
CWE-824

Description

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.

Affected configurations

• dena h2o (<= 2.2.6) • dena h2o 2.3.0

Related

Weakness · CWE (1)

  • CWE-824 Access of Uninitialized Pointer weakness

References