SUSE-SU-2026:2430-1: important: Security update for openssh8.4

Wed Jun 17 16:30:38 UTC 2026

# Security update for openssh8.4

Announcement ID: SUSE-SU-2026:2430-1  
Release Date: 2026-06-17T10:51:18Z  
Rating: important  
References:

  * bsc#1259642
  * bsc#1261427
  * bsc#1261430
  * bsc#1261441
  * bsc#1264568

Cross-References:

  * CVE-2026-3497
  * CVE-2026-35385
  * CVE-2026-35388
  * CVE-2026-35414

CVSS scores:

  * CVE-2026-3497 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-3497 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-3497 ( NVD ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-3497 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35385 ( SUSE ):  7.5
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-35385 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-35385 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-35385 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-35388 ( SUSE ):  2.1
    CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-35388 ( SUSE ):  2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-35388 ( NVD ):  2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-35388 ( NVD ):  2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-35414 ( SUSE ):  2.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-35414 ( SUSE ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-35414 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-35414 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves four vulnerabilities and has one security fix can now be
installed.

## Description:

This update for openssh8.4 fixes the following issues

  * CVE-2026-3497: Information disclosure or denial of service due to
    uninitialized variables (bsc#1259642).
  * CVE-2026-35385: a file downloaded by scp may be installed setuid or setgid
    (bsc#1261427).
  * CVE-2026-35388: omitted connection multiplexing confirmation for proxy-mode
    multiplexing sessions (bsc#1261441).
  * CVE-2026-35414: mishandling of authorized_keys principals option
    (bsc#1261430).
  * potential security issue in validating mac (bsc#1264568).

## 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 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2430=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2430=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * openssh8.4-clients-debuginfo-8.4p1-8.24.1
    * openssh8.4-common-8.4p1-8.24.1
    * openssh8.4-helpers-debuginfo-8.4p1-8.24.1
    * openssh8.4-server-8.4p1-8.24.1
    * openssh8.4-8.4p1-8.24.1
    * openssh8.4-clients-8.4p1-8.24.1
    * openssh8.4-debugsource-8.4p1-8.24.1
    * openssh8.4-fips-8.4p1-8.24.1
    * openssh8.4-helpers-8.4p1-8.24.1
    * openssh8.4-server-debuginfo-8.4p1-8.24.1
    * openssh8.4-common-debuginfo-8.4p1-8.24.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * openssh8.4-clients-debuginfo-8.4p1-8.24.1
    * openssh8.4-common-8.4p1-8.24.1
    * openssh8.4-helpers-debuginfo-8.4p1-8.24.1
    * openssh8.4-server-8.4p1-8.24.1
    * openssh8.4-8.4p1-8.24.1
    * openssh8.4-clients-8.4p1-8.24.1
    * openssh8.4-debugsource-8.4p1-8.24.1
    * openssh8.4-fips-8.4p1-8.24.1
    * openssh8.4-helpers-8.4p1-8.24.1
    * openssh8.4-server-debuginfo-8.4p1-8.24.1
    * openssh8.4-common-debuginfo-8.4p1-8.24.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-3497.html
  * https://www.suse.com/security/cve/CVE-2026-35385.html
  * https://www.suse.com/security/cve/CVE-2026-35388.html
  * https://www.suse.com/security/cve/CVE-2026-35414.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1259642
  * https://bugzilla.suse.com/show_bug.cgi?id=1261427
  * https://bugzilla.suse.com/show_bug.cgi?id=1261430
  * https://bugzilla.suse.com/show_bug.cgi?id=1261441
  * https://bugzilla.suse.com/show_bug.cgi?id=1264568

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