CVE-2024-7765

HIGH7.5EPSS 0.41%

H2O Vulnerable to Denial of Service (DoS) via Large GZIP Parsing

Published: 3/20/2025Modified: 3/20/2025

Description

In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.

Affected packages (2)

Maven/ai.h2o:h2o-core>= 3.32.1.2, <= 3.46.0.2
PyPI/h2o>= 3.32.1.2, <= 3.46.0.2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (4)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-7765
PATCHhttps://github.com/h2oai/h2o-3
WEBhttps://github.com/h2oai/h2o-3/blob/7d418fa19d3ab434f742818e37f891bef9102c97/h2o-core/src/main/java/water/parser/ParseDataset.java#L900
WEBhttps://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff