SUSE SLED15 / SLES15 Security Update : grpc (SUSE-SU-2026:0840-1)

high Nessus Plugin ID 301414

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0840-1 advisory.

This update for grpc fixes the following issue:

- CVE-2023-33953: unbounded memory and CPU consumption in the HPACK parser leads to remote DoS (bsc#1214148).

Tenable has extracted the preceding description block directly from the SUSE 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 affected libgrpc++1, libgrpc8 and / or python3-grpcio packages.

Plugin Details

Severity: High

ID: 301414

File Name: suse_SU-2026-0840-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/7/2026

Updated: 3/7/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-33953

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:python3-grpcio, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libgrpc%2b%2b1, p-cpe:/a:novell:suse_linux:libgrpc8

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: 3/6/2026

Vulnerability Publication Date: 8/9/2023

Reference Information

CVE: CVE-2023-33953

SuSE: SUSE-SU-2026:0840-1

Detections

Analytics