Detections
Analytics

Bottlerocket: amazon-ssm-agent: security update to 2.9.0

high Tenable Cloud Security Plugin ID 428058

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive
 number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and
 CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is
 allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an
 HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to
 be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the
 receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header
 frames we will process before closing a connection. (CVE-2023-45288)

Solution

Update the amazon-ssm-agent library and its related packages to version 2.9.0 or later.

Plugin Details

Severity: High

ID: 428058

Version: Revision 1.3

Type: Local

Published: 6/30/2025

Updated: 10/16/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.39

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2023-45288

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 4/3/2024

Reference Information

CVE: CVE-2023-45288