ESB-2021.1554 – [SUSE] python-Pygments: Denial of service – Remote/unauthenticated

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AUSCERT External Security Bulletin Redistribution

ESB-2021.1554
Security update for python-Pygments
6 May 2021

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AusCERT Security Bulletin Summary
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Product: python-Pygments
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service — Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-20270

Reference: ESB-2021.1206
ESB-2021.0988
ESB-2021.0903
ESB-2021.0890

Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20211500-1

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SUSE Security Update: Security update for python-Pygments

______________________________________________________________________________

Announcement ID: SUSE-SU-2021:1500-1
Rating: important
References: #1183169
Cross-References: CVE-2021-20270
Affected Products:
SUSE Linux Enterprise Server for SAP 15
SUSE Linux Enterprise Server 15-LTSS
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2
SUSE Linux Enterprise High Performance Computing 15-LTSS
SUSE Linux Enterprise High Performance Computing 15-ESPOS
______________________________________________________________________________

An update that fixes one vulnerability is now available.

Description:

This update for python-Pygments fixes the following issues:

o CVE-2021-20270: Fixed an infinite loop in SML lexer which may lead to DoS
(bsc#1183169)

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 Server for SAP 15:
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-1500=1
o SUSE Linux Enterprise Server 15-LTSS:
zypper in -t patch SUSE-SLE-Product-SLES-15-2021-1500=1
o SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3:
zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2021-1500=
1
o SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2:
zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2021-1500=
1
o SUSE Linux Enterprise High Performance Computing 15-LTSS:
zypper in -t patch SUSE-SLE-Product-HPC-15-2021-1500=1
o SUSE Linux Enterprise High Performance Computing 15-ESPOS:
zypper in -t patch SUSE-SLE-Product-HPC-15-2021-1500=1

Package List:

o SUSE Linux Enterprise Server for SAP 15 (noarch):
python3-Pygments-2.2.0-4.6.1
o SUSE Linux Enterprise Server 15-LTSS (noarch):
python3-Pygments-2.2.0-4.6.1
o SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3 (noarch):
python2-Pygments-2.2.0-4.6.1
o SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2 (noarch):
python2-Pygments-2.2.0-4.6.1
o SUSE Linux Enterprise High Performance Computing 15-LTSS (noarch):
python3-Pygments-2.2.0-4.6.1
o SUSE Linux Enterprise High Performance Computing 15-ESPOS (noarch):
python3-Pygments-2.2.0-4.6.1

References:

o https://www.suse.com/security/cve/CVE-2021-20270.html
o https://bugzilla.suse.com/1183169

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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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site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
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Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

https://www.auscert.org.au/bulletins/

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