{"schema_version":"1.7.5","id":"CVE-2020-10531","published":"2020-03-12T19:15:13.227Z","modified":"2026-07-08T20:03:52.870406Z","aliases":["BIT-node-2020-10531","BIT-node-min-2020-10531"],"related":["ALSA-2020:0902","ALSA-2020:1293","ALSA-2020:1317","SUSE-OU-2024:0647-1","SUSE-SU-2020:0819-1","SUSE-SU-2020:0819-2","SUSE-SU-2020:1180-1","SUSE-SU-2020:1568-1","SUSE-SU-2020:1575-1","SUSE-SU-2023:3563-1","SUSE-SU-2023:3563-2","SUSE-SU-2023:3563-3","openSUSE-SU-2020:0459-1","openSUSE-SU-2024:12116-1","openSUSE-SU-2024:13127-1"],"details":"An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nodejs/node","events":[{"introduced":"cf41627411886000429bde058a6594fb7f6d6d47"},{"last_affected":"4a276cc2a960b3f9a138ac3a99c9249a63b4d472"},{"introduced":"ab4af087e83d91a46354d765306d3543b1d85423"},{"fixed":"23adb548a57db0c56e359265108e7fe71d8b4f73"}],"database_specific":{"cpe":["cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*"],"extracted_events":[{"introduced":"10.0.0"},{"last_affected":"10.12.0"},{"introduced":"10.13.0"},{"fixed":"10.21.0"}],"source":"CPE_RANGE"}}],"versions":["v10.20.1","v10.20.0","v10.19.0","v10.18.1","v10.18.0","v10.17.0","v10.16.3","v10.16.2","v10.16.1","v10.16.0","v10.15.3","v10.15.2","v10.15.1","v10.15.0","v10.14.2","v10.14.1","v10.14.0","v10.13.0","v10.12.0","v10.11.0","v10.10.0","v10.9.0","v10.8.0","v10.7.0","v10.6.0","v10.5.0","v10.4.1","v10.4.0","v10.3.0","v10.2.1","v10.2.0","v10.1.0","v10.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10531.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/unicode-org/icu","events":[{"introduced":"0"},{"last_affected":"5f681ecbc75898a6484217b322f3883b6d1b2049"},{"fixed":"b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"}],"database_specific":{"cpe":"cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\\/c\\+\\+:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"66.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["release-66-1","release-66-rc","release-66-preview","release-65-rc","release-64-rc","release-63-rc","last-svn-commit","release-62-rc","release-61-rc","release-60-rc","cldr-32-beta2","milestone-60-0-1","release-59-rc","milestone-59-0-1","last-cvs-commit"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10531.json","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["163326310584139620683127306141902484022","53777311359894187782715740876739193896","259529947505127728544220868421245451215","275100226479365140411992926648193383127"],"threshold":0.9},"id":"CVE-2020-10531-073eef5e","signature_type":"Line","signature_version":"v1","source":"https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca","target":{"file":"icu4c/source/common/unistr.cpp"}},{"deprecated":false,"digest":{"function_hash":"311203197988252367781213452935901397736","length":783},"id":"CVE-2020-10531-52deb174","signature_type":"Function","signature_version":"v1","source":"https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca","target":{"file":"icu4c/source/common/unistr.cpp","function":"UnicodeString::doAppend"}},{"deprecated":false,"digest":{"function_hash":"282047263291457392771884626389331655576","length":1182},"id":"CVE-2020-10531-8aefd4ce","signature_type":"Function","signature_version":"v1","source":"https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca","target":{"file":"icu4c/source/test/intltest/ustrtest.cpp","function":"UnicodeStringTest::runIndexedTest"}},{"deprecated":false,"digest":{"line_hashes":["281493051491934789897437676517916732519","16536246155701564973448811408738863909","170482884151252957689139896393908258054","244202485545224852526398604846366360242","297837186745196421493934701917911463958"],"threshold":0.9},"id":"CVE-2020-10531-e4962e84","signature_type":"Line","signature_version":"v1","source":"https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca","target":{"file":"icu4c/source/test/intltest/ustrtest.cpp"}},{"deprecated":false,"digest":{"line_hashes":["176032011631701592212894972723462041867","313180536602387946983383287883265241998","253612880278707994326010847370624889941"],"threshold":0.9},"id":"CVE-2020-10531-efe65e00","signature_type":"Line","signature_version":"v1","source":"https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca","target":{"file":"icu4c/source/test/intltest/ustrtest.h"}}],"vanir_signatures_modified":"2026-07-08T20:03:52Z"}}],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00004.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0738"},{"type":"ADVISORY","url":"https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/03/msg00024.html"},{"type":"ADVISORY","url":"htt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