Security update for stunnel

Announcement ID: SUSE-SU-2022:0872-1
Rating: important
References:
Affected Products:
  • Server Applications Module 15-SP3
  • SUSE Enterprise Storage 7
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP3
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP3
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
  • SUSE Linux Enterprise Server 15 SP3
  • SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • SUSE Manager Proxy 4.1
  • SUSE Manager Proxy 4.2
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Retail Branch Server 4.2
  • SUSE Manager Server 4.1
  • SUSE Manager Server 4.2

An update that contains one feature and has two security fixes can now be installed.

Description:

This update for stunnel fixes the following issues:

Update to 5.62 including new features and bugfixes:

  • Security bugfixes
    • The "redirect" option was fixed to properly handle unauthenticated requests (bsc#1182529).
    • Fixed a double free with OpenSSL older than 1.1.0.
    • Added hardening to systemd service (bsc#1181400).
  • New features
    • Added new "protocol = capwin" and "protocol = capwinctrl" configuration file options.
    • Added support for the new SSL_set_options() values.
    • Added a bash completion script.
    • New 'sessionResume' service-level option to allow or disallow session resumption
    • Download fresh ca-certs.pem for each new release.
    • New 'protocolHeader' service-level option to insert custom 'connect' protocol negotiation headers. This feature can be used to impersonate other software (e.g. web browsers).
    • 'protocolHost' can also be used to control the client SMTP protocol negotiation HELO/EHLO value.
    • Initial FIPS 3.0 support.
    • Client-side "protocol = ldap" support
  • Bugfixes
    • Fixed a transfer() loop bug.
    • Fixed reloading configuration with "systemctl reload stunnel.service".
    • Fixed incorrect messages logged for OpenSSL errors.
    • Fixed 'redirect' with 'protocol'. This combination is not supported by 'smtp', 'pop3' and 'imap' protocols.
    • X.509v3 extensions required by modern versions of OpenSSL are added to generated self-signed test certificates.
    • Fixed a tiny memory leak in configuration file reload error handling.
    • Fixed engine initialization.
    • FIPS TLS feature is reported when a provider or container is available, and not when FIPS control API is available.
    • Fix configuration reload when compression is used
    • Fix test suite fixed not to require external connectivity

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:

  • Server Applications Module 15-SP3
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-872=1
  • SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-ESPOS-2022-872=1
  • SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2022-872=1
  • SUSE Linux Enterprise Real Time 15 SP2
    zypper in -t patch SUSE-SLE-Product-RT-15-SP2-2022-872=1
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-BCL-2022-872=1
  • SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2022-872=1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2022-872=1
  • SUSE Manager Proxy 4.1
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-872=1
  • SUSE Manager Retail Branch Server 4.1
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-872=1
  • SUSE Manager Server 4.1
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-872=1
  • SUSE Enterprise Storage 7
    zypper in -t patch SUSE-Storage-7-2022-872=1

Package List:

  • Server Applications Module 15-SP3 (aarch64 ppc64le s390x x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2 (aarch64 x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (aarch64 x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise Real Time 15 SP2 (x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2 (x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 ppc64le s390x x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2 (ppc64le x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Manager Proxy 4.1 (x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Manager Retail Branch Server 4.1 (x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Manager Server 4.1 (ppc64le s390x x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1
  • SUSE Enterprise Storage 7 (aarch64 x86_64)
    • stunnel-debugsource-5.62-3.14.1
    • stunnel-5.62-3.14.1
    • stunnel-debuginfo-5.62-3.14.1

References: