RHEL 9 : Red Hat OpenStack Platform 17.1 (python-h11) (RHSA-2025:7536)

critical Nessus Plugin ID 235931

Synopsis

The remote Red Hat host is missing a security update for Red Hat OpenStack Platform 17.1 (python-h11).

Description

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2025:7536 advisory.

Security Fix(es):

* h11 accepts some malformed Chunked-Encoding bodies (CVE-2025-43859)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL Red Hat OpenStack Platform 17.1 (python-h11) package based on the guidance in RHSA-2025:7536.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2362162

http://www.nessus.org/u?9472b191

https://access.redhat.com/errata/RHSA-2025:7536

Plugin Details

Severity: Critical

ID: 235931

File Name: redhat-RHSA-2025-7536.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2025-43859

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:python3-h11, p-cpe:/a:redhat:enterprise_linux:python-h11, cpe:/o:redhat:enterprise_linux:9

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2025

Vulnerability Publication Date: 4/24/2025

Reference Information

CVE: CVE-2025-43859

CWE: 444

RHSA: 2025:7536