SUSE update for protobuf

1) Uncontrolled Recursion

EUVDB-ID: #VU112882

Risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2025-4565

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

the vulnerability exists due to uncontrolled recursion when parsing untrusted data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags. A remote attacker send specially crafted input to the application and can perform a denial of service attack. 

Mitigation

Update the affected package protobuf to the latest version.

Vulnerable software versions

Public Cloud Module: 15-SP3 - 15-SP7

Basesystem Module: 15-SP6 - 15-SP7

SUSE Package Hub 15: 15-SP6 - 15-SP7

SUSE Linux Enterprise Real Time 15: SP6 - SP7

SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP7

SUSE Linux Enterprise Server 15: SP3 - SP7

SUSE Linux Enterprise Desktop 15: SP6 - SP7

SUSE Linux Enterprise Micro: 5.1 - 5.5

SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4

SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5

SUSE Manager Retail Branch Server: 4.2 - 4.3

SUSE Manager Server: 4.2 - 4.3

SUSE Manager Proxy: 4.2 - 4.3

python3-protobuf: before 3.9.2-150200.4.27.1

libprotobuf20: before 3.9.2-150200.4.27.1

libprotobuf20-debuginfo: before 3.9.2-150200.4.27.1

libprotobuf-lite20: before 3.9.2-150200.4.27.1

libprotobuf-lite20-debuginfo: before 3.9.2-150200.4.27.1

protobuf-debugsource: before 3.9.2-150200.4.27.1

CPE2.3

• cpe:2.3:o:suse:public_cloud_module:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:public_cloud_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:public_cloud_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP7:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_package_hub_15:15-SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_package_hub_15:15-SP7:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP7:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.2:*:*:*:*:*:*:*
• cpe:2.3:a:suse:python3-protobuf:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libprotobuf20:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libprotobuf20-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libprotobuf-lite20:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libprotobuf-lite20-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:protobuf-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2025/suse-su-20253722-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.