CVE-2023-30847
Assigner: GitHub_M
Published: 2023-04-27T14:08:35.112Z
State: PUBLISHED
title: H2O vulnerable to read from uninitialized pointer in the reverse proxy handler
problemTypes: descriptions: cweId: CWE-824
description: CWE-824: Access of Uninitialized Pointer
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
version: 3.1
affected: vendor: h2o
product: h2o
versions: version: <= 2.3.0-beta2
status: affected
descriptions: value: 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.
source: advisory: GHSA-p5hj-phwj-hrvx
discovery: UNKNOWN