Security update for stunnel

Announcement ID: SUSE-SU-2021:0772-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-20230 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2021-20230 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • Server Applications Module 15-SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1

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

Description:

This update for stunnel fixes the following issues:

  • Security fix: [bsc#1177580, bsc#1182529, CVE-2021-20230]
  • "redirect" option does not properly handle "verifyChain = yes"

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-SP2
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-772=1

Package List:

  • Server Applications Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • stunnel-debugsource-5.57-3.11.1
    • stunnel-debuginfo-5.57-3.11.1
    • stunnel-5.57-3.11.1

References: