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AUSCERT External Security Bulletin Redistribution
ESB-2021.0904
Security update for stunnel
15 March 2021
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AusCERT Security Bulletin Summary
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Product: stunnel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-20230
Reference: ESB-2021.0662
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20210772-1
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SUSE Security Update: Security update for stunnel
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0772-1
Rating: important
References: #1177580 #1182529
Cross-References: CVE-2021-20230
Affected Products:
SUSE Linux Enterprise Module for Server Applications 15-SP2
______________________________________________________________________________
An update that solves one vulnerability and has one errata is now available.
Description:
This update for stunnel fixes the following issues:
o Security fix: [bsc#1177580, bsc#1182529, CVE-2021-20230] * "redirect"
option does not properly handle "verifyChain = yes"
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Module for Server Applications 15-SP2:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-772=1
Package List:
o SUSE Linux Enterprise Module for Server Applications 15-SP2 (aarch64
ppc64le s390x x86_64):
stunnel-5.57-3.11.1
stunnel-debuginfo-5.57-3.11.1
stunnel-debugsource-5.57-3.11.1
References:
o https://www.suse.com/security/cve/CVE-2021-20230.html
o https://bugzilla.suse.com/1177580
o https://bugzilla.suse.com/1182529
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