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SUSE 15 SP7 gRPC Key Remote DoS Vulnerability Fix Advisory 2026-0840-1

suse
Calendar Grey March 6, 2026
Dist Suse Esm H88
SUSE grpc update resolves important vulnerability with potential DoS impact. Install patches to ensure security stability.
An update that solves one vulnerability can now be installed.

Summary

## 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

Topics%20covered

Topics Covered

security advisory SuSE DoS important gRPC cve-2023-33953

References

* bsc#1214148

Cross-

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0840-1
Release Date: 2026-03-06T11:36:26Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE DoS important gRPC cve-2023-33953

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