SUSE update for haproxy

1) Heap-based buffer overflow

EUVDB-ID: #VU107589

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-32464

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the regsub() function in src/sample.c. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Successful exploitation of this vulnerability requires a very specific configuration of the proxy server.

Mitigation

Update the affected package haproxy to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.3 - 5.5

SUSE Linux Enterprise High Availability Extension 15: SP4 - SP5

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

haproxy: All versions

haproxy-debugsource: All versions

haproxy-debuginfo: All versions

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_availability_extension_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_availability_extension_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:haproxy:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:haproxy-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:haproxy-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2025/suse-su-20251338-1/

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.