SUSE update for openssh

1) Man-in-the-Middle (MitM) attack

EUVDB-ID: #VU104035

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-26465

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to incorrect processing of user-supplied data in ssh(1). A remote attacker can perform server impersonation when VerifyHostKeyDNS enabled.

Mitigation

Update the affected package openssh to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3 - SP5

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP5: LTSS

SUSE Linux Enterprise Server 15 SP3: LTSS

SUSE Linux Enterprise Server 15 SP4: LTSS

SUSE Linux Enterprise Micro: 5.1 - 5.5

SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP5

SUSE Linux Enterprise Server 15: SP3 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP3 - SP5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.3

openssh-clients: before 8.4p1-150300.3.42.1

openssh: before 8.4p1-150300.3.42.1

openssh-server: before 8.4p1-150300.3.42.1

openssh-helpers-debuginfo: before 8.4p1-150300.3.42.1

openssh-common: before 8.4p1-150300.3.42.1

openssh-askpass-gnome-debugsource: before 8.4p1-150300.3.42.1

openssh-clients-debuginfo: before 8.4p1-150300.3.42.1

openssh-debuginfo: before 8.4p1-150300.3.42.1

openssh-askpass-gnome: before 8.4p1-150300.3.42.1

openssh-cavs: before 8.4p1-150300.3.42.1

openssh-fips: before 8.4p1-150300.3.42.1

openssh-server-debuginfo: before 8.4p1-150300.3.42.1

openssh-helpers: before 8.4p1-150300.3.42.1

openssh-askpass-gnome-debuginfo: before 8.4p1-150300.3.42.1

openssh-common-debuginfo: before 8.4p1-150300.3.42.1

openssh-cavs-debuginfo: before 8.4p1-150300.3.42.1

openssh-debugsource: before 8.4p1-150300.3.42.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp5:LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp3:LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp4:LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• 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_high_performance_computing_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• 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:15.3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:openssh-clients:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-server:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-helpers-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-askpass-gnome-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-clients-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-askpass-gnome:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-cavs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-fips:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-server-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-helpers:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-askpass-gnome-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-common-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-cavs-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssh-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2025/suse-su-20250605-1/

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.