Security update for grpc

Announcement ID:	SUSE-SU-2026:0840-1
Release Date:	2026-03-06T11:36:26Z
Rating:	important
References:	bsc#1214148
Cross-References:	CVE-2023-33953
CVSS scores:	CVE-2023-33953 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2023-33953 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	Basesystem Module 15-SP7 Public Cloud Module 15-SP4 Public Cloud Module 15-SP5 Public Cloud Module 15-SP6 Public Cloud Module 15-SP7 SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 SUSE Linux Enterprise Real Time 15 SP7 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server 15 SP4 LTSS SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server 15 SP5 LTSS SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server 15 SP6 LTSS SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP7 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3

An update that solves one vulnerability can now be installed.

Description:

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).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Enterprise Server for SAP Applications 15 SP4
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-840=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-840=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-840=1
• Basesystem Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-840=1
• Public Cloud Module 15-SP4
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-840=1
• Public Cloud Module 15-SP5
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP5-2026-840=1
• Public Cloud Module 15-SP6
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP6-2026-840=1
• Public Cloud Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP7-2026-840=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-840=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-840=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-840=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-840=1
• SUSE Linux Enterprise Server 15 SP4 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-840=1
• SUSE Linux Enterprise Server 15 SP5 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-840=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-840=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • grpc-debuginfo-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
  • grpc-debugsource-1.25.0-150200.3.10.1
• Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • grpc-debuginfo-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
  • grpc-debugsource-1.25.0-150200.3.10.1
• Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64)
  • python3-grpcio-1.25.0-150200.3.10.1
  • python3-grpcio-debuginfo-1.25.0-150200.3.10.1
• Public Cloud Module 15-SP5 (aarch64 ppc64le s390x x86_64)
  • python3-grpcio-1.25.0-150200.3.10.1
  • libgrpc8-1.25.0-150200.3.10.1
  • python3-grpcio-debuginfo-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• Public Cloud Module 15-SP6 (aarch64 ppc64le s390x x86_64)
  • python3-grpcio-1.25.0-150200.3.10.1
  • grpc-debuginfo-1.25.0-150200.3.10.1
  • python3-grpcio-debuginfo-1.25.0-150200.3.10.1
  • grpc-debugsource-1.25.0-150200.3.10.1
• Public Cloud Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • python3-grpcio-1.25.0-150200.3.10.1
  • grpc-debuginfo-1.25.0-150200.3.10.1
  • python3-grpcio-debuginfo-1.25.0-150200.3.10.1
  • grpc-debugsource-1.25.0-150200.3.10.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • libgrpc++1-debuginfo-1.25.0-150200.3.10.1
  • libgrpc++1-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
  • libgrpc8-1.25.0-150200.3.10.1
  • grpc-debuginfo-1.25.0-150200.3.10.1
  • libgrpc8-debuginfo-1.25.0-150200.3.10.1
  • grpc-debugsource-1.25.0-150200.3.10.1

References:

• https://www.suse.com/security/cve/CVE-2023-33953.html
• https://bugzilla.suse.com/show_bug.cgi?id=1214148