{"id":"CVE-2020-27221","details":"In Eclipse OpenJ9 up to and including version 0.23, there is potential for a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding.","modified":"2026-05-18T18:03:43.322528Z","published":"2021-01-21T05:15:10.600Z","related":["SUSE-SU-2021:0512-1","SUSE-SU-2021:0652-1","SUSE-SU-2021:0670-1","SUSE-SU-2021:14634-1","SUSE-SU-2021:14640-1"],"references":[{"type":"REPORT","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=569763"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse-openj9/openj9","events":[{"introduced":"0"},{"last_affected":"0394ef7545243942a4b27227a22174c1be67ed60"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.23.0"}],"cpe":"cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"versions":["openj9-0.23.0","openj9-0.23.0-m2","openj9-0.23.0-m1","openj9-0.22.0-m1","openj9-0.21.0-m1","openj9-0.20.0-m1","openj9-0.19.0-m1","openj9-0.18.0-m1","openj9-0.17.0-m1","openj9-0.16.0-m1","openj9-0.12.0-rc1","openj9-0.12.0-m2","openj9-0.12.0-m1","openj9-0.11.0-rc2","openj9-0.11.0","openj9-0.11.0-rc1","openj9-0.10.0-rc1","openj9-0.9.0-rc1","openj9-0.8.0-rc2","openj9-0.8.0","openj9-0.8.0-rc1","openj9-0.0RC2","openj9-0.0","openj9-0.0M1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27221.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}