SUSE-SU-2026:3596-1: important: Security update for openvpn

OPENSUSE-SECURITY-UPDATES <[email protected]>
Newsgroups gmane.linux.suse.security.announce
Message-ID <178655282096.1240.5359054891270717221@430413e854a7> 
# Security update for openvpn

Announcement ID: SUSE-SU-2026:3596-1  
Release Date: 2026-08-12T11:37:59Z  
Rating: important  
References:

  * bsc#1267944
  * bsc#1267945
  * bsc#1273126
  * bsc#1273127
  * bsc#1273128
  * bsc#1273129
  * bsc#1273130

  
Cross-References:

  * CVE-2026-11771
  * CVE-2026-12932
  * CVE-2026-12996
  * CVE-2026-13117
  * CVE-2026-13379
  * CVE-2026-35058
  * CVE-2026-40215

  
CVSS scores:

  * CVE-2026-11771 ( SUSE ):  7.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  * CVE-2026-11771 ( SUSE ):  6.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H
  * CVE-2026-11771 ( NVD ):  7.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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-2026-11771 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-12932 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-12932 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-12932 ( NVD ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/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-2026-12932 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-12996 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-12996 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-12996 ( NVD ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/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-2026-12996 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-13117 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-13117 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-13117 ( NVD ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/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-2026-13117 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-13379 ( SUSE ):  5.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:N/SA:H
  * CVE-2026-13379 ( SUSE ):  7.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:H
  * CVE-2026-13379 ( NVD ):  5.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:N/SA:H/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-2026-13379 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-35058 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-35058 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35058 ( NVD ):  6.9
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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-2026-35058 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-40215 ( SUSE ):  6.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-40215 ( SUSE ):  6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-40215 ( NVD ):  6.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L/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-2026-40215 ( NVD ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves seven vulnerabilities can now be installed.

## Description:

This update for openvpn fixes the following issues:

  * CVE-2026-11771: NTLM proxy auth stack off-by-one write (bsc#1273126).
  * CVE-2026-12932: memory leak using --tls-crypt-v2 (bsc#1273127).
  * CVE-2026-12996: potential DoS and memory leak via TLS session use-after-free
    (bsc#1273128).
  * CVE-2026-13117: heap use-after-free via incomplete guard in
    check_session_buf_not_used() (bsc#1273129).
  * CVE-2026-13379: Windows interactive service DNS SearchList state pollution
    (bsc#1273130).
  * CVE-2026-35058: improper validation of packet length can lead to a denial of
    service (bsc#1267945).
  * CVE-2026-40215: race condition during TLS session promotion can lead to a
    use-after-free (bsc#1267944).

## 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 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3596=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3596=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3596=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3596=1

## Package List:

  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * openvpn-debugsource-2.6.10-150600.3.26.1
    * openvpn-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-2.6.10-150600.3.26.1
    * openvpn-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-devel-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-debugsource-2.6.10-150600.3.26.1
    * openvpn-dco-debuginfo-2.6.10-150600.3.26.1
    * openvpn-devel-2.6.10-150600.3.26.1
    * openvpn-dco-2.6.10-150600.3.26.1
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * openvpn-debugsource-2.6.10-150600.3.26.1
    * openvpn-down-root-plugin-2.6.10-150600.3.26.1
    * openvpn-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-2.6.10-150600.3.26.1
    * openvpn-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-devel-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-debugsource-2.6.10-150600.3.26.1
    * openvpn-dco-debuginfo-2.6.10-150600.3.26.1
    * openvpn-devel-2.6.10-150600.3.26.1
    * openvpn-dco-2.6.10-150600.3.26.1
    * openvpn-down-root-plugin-debuginfo-2.6.10-150600.3.26.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * openvpn-debugsource-2.6.10-150600.3.26.1
    * openvpn-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-2.6.10-150600.3.26.1
    * openvpn-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-devel-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-debugsource-2.6.10-150600.3.26.1
    * openvpn-dco-debuginfo-2.6.10-150600.3.26.1
    * openvpn-devel-2.6.10-150600.3.26.1
    * openvpn-dco-2.6.10-150600.3.26.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * openvpn-debugsource-2.6.10-150600.3.26.1
    * openvpn-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-2.6.10-150600.3.26.1
    * openvpn-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-devel-2.6.10-150600.3.26.1
    * openvpn-auth-pam-plugin-debuginfo-2.6.10-150600.3.26.1
    * openvpn-dco-debugsource-2.6.10-150600.3.26.1
    * openvpn-dco-debuginfo-2.6.10-150600.3.26.1
    * openvpn-devel-2.6.10-150600.3.26.1
    * openvpn-dco-2.6.10-150600.3.26.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-11771.html
  * https://www.suse.com/security/cve/CVE-2026-12932.html
  * https://www.suse.com/security/cve/CVE-2026-12996.html
  * https://www.suse.com/security/cve/CVE-2026-13117.html
  * https://www.suse.com/security/cve/CVE-2026-13379.html
  * https://www.suse.com/security/cve/CVE-2026-35058.html
  * https://www.suse.com/security/cve/CVE-2026-40215.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1267944
  * https://bugzilla.suse.com/show_bug.cgi?id=1267945
  * https://bugzilla.suse.com/show_bug.cgi?id=1273126
  * https://bugzilla.suse.com/show_bug.cgi?id=1273127
  * https://bugzilla.suse.com/show_bug.cgi?id=1273128
  * https://bugzilla.suse.com/show_bug.cgi?id=1273129
  * https://bugzilla.suse.com/show_bug.cgi?id=1273130
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