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AUSCERT External Security Bulletin Redistribution
ESB-2021.2859
Security update for python-PyYAML
25 August 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: python-PyYAML
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-14343 CVE-2020-1747
Reference: ESB-2021.1580
ESB-2020.1813
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20212818-1
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SUSE Security Update: Security update for python-PyYAML
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2818-1
Rating: important
References: #1174514
Cross-References: CVE-2020-14343
Affected Products:
SUSE OpenStack Cloud Crowbar 9
SUSE OpenStack Cloud Crowbar 8
SUSE OpenStack Cloud 9
SUSE OpenStack Cloud 8
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Server for SAP 12-SP4
SUSE Linux Enterprise Server for SAP 12-SP3
SUSE Linux Enterprise Server 12-SP5
SUSE Linux Enterprise Server 12-SP4-LTSS
SUSE Linux Enterprise Server 12-SP3-LTSS
SUSE Linux Enterprise Server 12-SP3-BCL
SUSE Linux Enterprise Module for Public Cloud 12
HPE Helion Openstack 8
______________________________________________________________________________
An update that fixes one vulnerability is now available.
Description:
This update for python-PyYAML fixes the following issues:
o Update to 5.3.1.
o CVE-2020-14343: A vulnerability was discovered in the PyYAML library, where
it was susceptible to arbitrary code execution when it processes untrusted
YAML files through the full_load method or with the FullLoader loader.
Applications that use the library to process untrusted input may be
vulnerable to this flaw. This flaw allows an attacker to execute arbitrary
code on the system by abusing the python/object/new constructor. This flaw
is due to an incomplete fix for CVE-2020-1747.
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 Crowbar 9:
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2021-2818=1
o SUSE OpenStack Cloud Crowbar 8:
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2021-2818=1
o SUSE OpenStack Cloud 9:
zypper in -t patch SUSE-OpenStack-Cloud-9-2021-2818=1
o SUSE OpenStack Cloud 8:
zypper in -t patch SUSE-OpenStack-Cloud-8-2021-2818=1
o SUSE OpenStack Cloud 7:
zypper in -t patch SUSE-OpenStack-Cloud-7-2021-2818=1
o SUSE Linux Enterprise Server for SAP 12-SP4:
zypper in -t patch SUSE-SLE-SAP-12-SP4-2021-2818=1
o SUSE Linux Enterprise Server for SAP 12-SP3:
zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-2818=1
o SUSE Linux Enterprise Server 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-2818=1
o SUSE Linux Enterprise Server 12-SP4-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2021-2818=1
o SUSE Linux Enterprise Server 12-SP3-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-2818=1
o SUSE Linux Enterprise Server 12-SP3-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2021-2818=1
o SUSE Linux Enterprise Module for Public Cloud 12:
zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2021-2818=1
o HPE Helion Openstack 8:
zypper in -t patch HPE-Helion-OpenStack-8-2021-2818=1
Package List:
o SUSE OpenStack Cloud Crowbar 9 (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o SUSE OpenStack Cloud Crowbar 8 (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
o SUSE OpenStack Cloud 9 (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o SUSE OpenStack Cloud 8 (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
o SUSE OpenStack Cloud 7 (aarch64 s390x x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
o SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
o SUSE Linux Enterprise Server 12-SP5 (aarch64 ppc64le s390x x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 ppc64le s390x x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o SUSE Linux Enterprise Server 12-SP3-LTSS (aarch64 ppc64le s390x x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
o SUSE Linux Enterprise Server 12-SP3-BCL (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
o SUSE Linux Enterprise Module for Public Cloud 12 (aarch64 ppc64le s390x
x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
python3-PyYAML-debuginfo-5.3.1-28.6.1
o HPE Helion Openstack 8 (x86_64):
python-PyYAML-5.3.1-28.6.1
python-PyYAML-debuginfo-5.3.1-28.6.1
python-PyYAML-debugsource-5.3.1-28.6.1
python3-PyYAML-5.3.1-28.6.1
References:
o https://www.suse.com/security/cve/CVE-2020-14343.html
o https://bugzilla.suse.com/1174514
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