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AUSCERT External Security Bulletin Redistribution
ESB-2021.2192
Security update for python-urllib3
21 June 2021
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AusCERT Security Bulletin Summary
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Product: python-urllib3
Publisher: SUSE
Operating System: SUSE
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service — Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-33503
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20212012-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than SUSE. It is recommended that administrators
running python-urllib3 check for an updated version of the software
for their operating system.
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SUSE Security Update: Security update for python-urllib3
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2012-1
Rating: important
References: #1187045
Cross-References: CVE-2021-33503
Affected Products:
SUSE Linux Enterprise Module for Basesystem 15-SP3
______________________________________________________________________________
An update that fixes one vulnerability is now available.
Description:
This update for python-urllib3 fixes the following issues:
o CVE-2021-33503: Fixed a denial of service when the URL contained many @
characters in the authority component (bsc#1187045)
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 Basesystem 15-SP3:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2012=1
Package List:
o SUSE Linux Enterprise Module for Basesystem 15-SP3 (noarch):
python3-urllib3-1.25.10-4.3.1
References:
o https://www.suse.com/security/cve/CVE-2021-33503.html
o https://bugzilla.suse.com/1187045
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
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NOTE: This is only the original release of the security bulletin. It may
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Contact information for the authors of the original document is included
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information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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