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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2308
                      Security update for python-rsa
                                5 July 2021

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

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

Product:           python-rsa
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
                   Reduced Security         -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-13757  

Reference:         ESB-2021.2169
                   ESB-2020.2990
                   ESB-2020.2943

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2021/suse-su-20212237-1

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SUSE Security Update: Security update for python-rsa

______________________________________________________________________________

Announcement ID:   SUSE-SU-2021:2237-1
Rating:            important
References:        #1172389
Cross-References:  CVE-2020-13757
Affected Products:
                   SUSE OpenStack Cloud 7
                   SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

An update that fixes one vulnerability is now available.

Description:

This update for python-rsa fixes the following issues:

  o CVE-2020-13757: Proper handling of leading '\0' bytes during decryption of
    ciphertext (bsc#1172389)

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 OpenStack Cloud 7:
    zypper in -t patch SUSE-OpenStack-Cloud-7-2021-2237=1
  o SUSE Linux Enterprise Module for Public Cloud 12:
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2021-2237=1

Package List:

  o SUSE OpenStack Cloud 7 (noarch):
       python-rsa-3.1.4-12.16.1
  o SUSE Linux Enterprise Module for Public Cloud 12 (noarch):
       python-rsa-3.1.4-12.16.1


References:

  o https://www.suse.com/security/cve/CVE-2020-13757.html
  o https://bugzilla.suse.com/1172389

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