(RHSA-2023:5851) Important: RHACS 4.1 enhancement and security update

2023-10-1816:16:46

access.redhat.com

rhacs

security update

http/2

vulnerabilities

fix

denial of service

cve-2023-39325

cve-2023-44487

glibc

containers

policy

alert

cvss score

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.732 High

EPSS

Percentile

98.1%

JSON

This release of RHACS 4.1.4 includes fixes for the following security vulnerabilities:

golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-39325)
HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
Various CVEs in containers for glibc security issues

A Red Hat Security Bulletin which addresses further details about this flaw is available in the References section.

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

RHACS 4.1.4 includes a new default policy called “Rapid Reset: Denial of Service Vulnerability in HTTP/2 Protocol”. This policy alerts on deployments with images containing components that are susceptible to a Denial of Service (DoS) vulnerability for HTTP/2 servers, based on CVE-2023-44487 and CVE-2023-39325. This policy applies to the build or deploy life cycle stage.