{"schema_version":"1.7.3","id":"SUSE-SU-2021:2818-1","published":"2021-08-24T07:05:40Z","modified":"2026-02-04T04:31:03.510965Z","related":["CVE-2020-14343"],"upstream":["CVE-2020-14343"],"summary":"Security update for python-PyYAML","details":"\nThis update for python-PyYAML fixes the following issues:\n\n- Update to 5.3.1.\n\n- CVE-2020-14343: A vulnerability was discovered in the PyYAML library,\n  where it was susceptible to arbitrary code execution when it processes\n  untrusted YAML files through the full_load method or with the FullLoader\n  loader. Applications that use the library to process untrusted input\n  may be vulnerable to this flaw. This flaw allows an attacker to\n  execute arbitrary code on the system by abusing the python/object/new\n  constructor. This flaw is due to an incomplete fix for CVE-2020-1747.\n","affected":[{"package":{"name":"python-PyYAML","ecosystem":"SUSE:HPE Helion OpenStack 8","purl":"pkg:rpm/suse/python-PyYAML&distro=HPE%20Helion%20OpenStack%208"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-28.6.1"}]}],"ecosystem_specific":{"binaries":[{"python-PyYAML":"5.3.1-28.6.1","python3-PyYAML":"5.3.1-28.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:2818-1.json"}},{"package":{"name":"python-PyYAML","ecosystem":"SUSE:OpenStack Cloud 7","purl":"pkg:rpm/suse/python-PyYAML&distro=SUSE%20OpenStack%20Cloud%207"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-28.6.1"}]}],"ecosystem_specific":{"binaries":[{"python-PyYAML":"5.3.1-28.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:2818-1.json"}},{"package":{"name":"python-PyYAML","ecosystem":"SUSE:OpenStack Cloud 8","purl":"pkg:rpm/suse/python-PyYAML&distro=SUSE%20OpenStack%20Cloud%208"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-28.6.1"}]}],"ecosystem_specific":{"binaries":[{"python-PyYAML":"5.3.1-28.6.1","python3-PyYAML":"5.3.1-28.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:2818-1.json"}},{"package":{"name":"python-PyYAML","ecosystem":"SUSE:OpenStack Cloud 9","purl":"pkg:rpm/suse/python-PyYAML&distro=SUSE%20OpenStack%20Cloud%209"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.1-28.6.1"}]}],"ecosystem_specific":{"binaries":[{"python-PyYAML":"5.3.1-28.6.1","python3-PyYAML":"5.3.1-28.6.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:2818-1.json"}},{"package":{"name":"python-PyYAML","ecosystem":"SUSE:OpenStack Cloud Crowbar 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