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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2255
                        Security update for go1.16
                               29 June 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Go 1.16
Publisher:         SUSE
Operating System:  SUSE
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Provide Misleading Information -- Remote with User Interaction
                   Denial of Service              -- Remote/Unauthenticated      
                   Reduced Security               -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-33198 CVE-2021-33197 CVE-2021-33196
                   CVE-2021-33195  

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2021/suse-su-20212186-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than SUSE. It is recommended that administrators 
         running Go 1.16 check for an updated version of the software for 
         their operating system.

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SUSE Security Update: Security update for go1.16

______________________________________________________________________________

Announcement ID:   SUSE-SU-2021:2186-1
Rating:            important
References:        #1182345 #1186622 #1187443 #1187444 #1187445
Cross-References:  CVE-2021-33195 CVE-2021-33196 CVE-2021-33197 CVE-2021-33198
Affected Products:
                   SUSE Linux Enterprise Module for Development Tools 15-SP3
                   SUSE Linux Enterprise Module for Development Tools 15-SP2
______________________________________________________________________________

An update that solves four vulnerabilities and has one errata is now available.

Description:

This update for go1.16 fixes the following issues:
Update to 1.16.5.
Includes these security fixes

  o CVE-2021-33195: net: Lookup functions may return invalid host names (bsc#
    1187443).
  o CVE-2021-33196: archive/zip: malformed archive may cause panic or memory
    exhaustion (bsc#1186622).
  o CVE-2021-33197: net/http/httputil: ReverseProxy forwards Connection headers
    if first one is empty (bsc#1187444)
  o CVE-2021-33198: math/big: (*Rat).SetString with
    "1.770p02041010010011001001" crashes with "makeslice: len out of range"
    (bsc#1187445).

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 Development Tools 15-SP3:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP3-2021-2186=1
  o SUSE Linux Enterprise Module for Development Tools 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP2-2021-2186=1

Package List:

  o SUSE Linux Enterprise Module for Development Tools 15-SP3 (aarch64 ppc64le
    s390x x86_64):
       go1.16-1.16.5-1.17.1
       go1.16-doc-1.16.5-1.17.1
  o SUSE Linux Enterprise Module for Development Tools 15-SP3 (aarch64 x86_64):
       go1.16-race-1.16.5-1.17.1
  o SUSE Linux Enterprise Module for Development Tools 15-SP2 (aarch64 ppc64le
    s390x x86_64):
       go1.16-1.16.5-1.17.1
       go1.16-doc-1.16.5-1.17.1
  o SUSE Linux Enterprise Module for Development Tools 15-SP2 (aarch64 x86_64):
       go1.16-race-1.16.5-1.17.1


References:

  o https://www.suse.com/security/cve/CVE-2021-33195.html
  o https://www.suse.com/security/cve/CVE-2021-33196.html
  o https://www.suse.com/security/cve/CVE-2021-33197.html
  o https://www.suse.com/security/cve/CVE-2021-33198.html
  o https://bugzilla.suse.com/1182345
  o https://bugzilla.suse.com/1186622
  o https://bugzilla.suse.com/1187443
  o https://bugzilla.suse.com/1187444
  o https://bugzilla.suse.com/1187445

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===========================================================================
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