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SUSE: 2021:2818-1 Critical: Update for python-PyYAML Code Execution

suse
Calendar Grey August 24, 2021
Scroller Suse Esm H88
SUSE Security Patch for python-PyYAML resolves significant vulnerability found in CVE-2020-14343. Immediate update is advised.
An update that fixes one vulnerability is now available

Summary

This update for python-PyYAML fixes the following issues: - Update to 5.3.1. - 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: - SUSE OpenStack Cloud Crowbar 9:

Topics%20covered

Topics Covered

security advisory update critical arbitrary code execution SUSE python-PyYAML

References

#1174514

Cross- CVE-2020-14343

CVSS scores:

CVE-2020-14343 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2020-14343 (SUSE): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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

https://www.suse.com/security/cve/CVE-2020-14...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:2818-1
Rating: important

Topics%20covered

Topics Covered

security advisory update critical arbitrary code execution SUSE python-PyYAML

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