SUSE SLES15 Security Update : amazon-cloudwatch-agent (SUSE-SU-2026:4388-1)

high Nessus Plugin ID 351401

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4388-1 advisory.

- CVE-2026-84303: google.golang.org/grpc: xDS RBAC HTTP filter implementation issue allows for bypass of authorization policies via mixed-case or canonical-case header matches (bsc#1279334).
- CVE-2026-84304: google.golang.org/grpc: heap memory exhaustion via HTTP/2 DATA frame fragmentation (bsc#1279235).
- CVE-2026-84445: google.golang.org/grpc: DoS via crash due to missing `:authority` and `Host` headers in gRPC-Go xDS servers (bsc#1279393).

Changes for amazon-cloudwatch-agent:

- Update to version 1.300072.0

* [DatabaseInsights] Enable PostgreSQL execution plan collection by @AshuSrv in (#2225)
* [DatabaseInsights] Add workload detection for PostgreSQL database servers by @Paamicky in (#2220)
* [ApplicationSignals] Preserve jvm.gc.name attribute in GC runtime metrics to differentiate collector types by @ezhang6811 in (#2218)
* [DatabaseInsights] Split PostgreSQL per-resource metrics to a dedicated 60s receiver to reduce collection overhead by @EduVencovsky in (#2232)
* [Agent] Bump grpc and golang.org/x/net dependencies by @dependabot in (#2217) and @movence in (#2242)
* [Agent] Fix AKS cloud.resource_id derivation to use the cluster resource group by @jefchien in (#2237)

- Lock github.com/prometheus/common at v0.62.0

- Update to version 1.300071.0

* [OpenTelemetry] Add file tailing and Windows Events support by @jefchien in (#2206) and (#2193)
* [OpenTelemetry] Add resource_attributes support by @movence in (#2207)
* [Agent] Add set-env ctl action to persist agent environment variables by @sky333999 in (#2211)
* [Agent] Add platform-aware default configs for OpenTelemetry (host, Kubernetes, ECS) by @jefchien in (#2179)
* [Agent] Add Microsoft Azure support for VMs and AKS by @movence in (#2183)
* [OpenTelemetry] Add root-level cluster_name and standardize collection_interval by @Paamicky in (#2189)
* [Agent] Retain custom environment variables in env-config.json between translation by @jefchien in (#2131)
* [DatabaseInsights] Add severity parsing and fix multiline/timestamp for PostgreSQL server logs by @JayPolanco in (#2209)
* [Logs] Fix throttling deadlock in cloudwatchlogs output plugin when destinations are removed by @lorespiz in (#2190)
* [Logs] Fix force-flush timer permanently stalling on low-volume log streams by @musa-asad in (#2166)
* [Logs] Add journald log collection support by @Paamicky in (#2121)
* [OpenTelemetry] Add new opentelemetry section in JSON configuration to support sending telemetry to CloudWatch OTLP endpoints by @mitali-salvi in (#2152)
* [DatabaseInsights] Add support for self-managed PostgreSQL metrics and logs collection by @JayPolanco in (#2172)
* [ApplicationSignals] Fix Service Events logs and metrics pipelines to use shared AWS credential chain by @jefchien in (#2151)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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

Solution

Update the affected amazon-cloudwatch-agent package.

Plugin Details

Severity: High

ID: 351401

File Name: suse_SU-2026-4388-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 9/30/2026

Updated: 9/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.39

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-2026-84303

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-84445

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:amazon-cloudwatch-agent

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/29/2026

Vulnerability Publication Date: 9/1/2026

Reference Information

CVE: CVE-2026-84303, CVE-2026-84304, CVE-2026-84445

SuSE: SUSE-SU-2026:4388-1

Detections

Analytics