{"id":"ALPINE-CVE-2021-3700","details":"A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.","modified":"2026-11-03T06:32:39.849064105Z","published":"2022-02-24T19:15:09.260Z","upstream":["CVE-2021-3700"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-3700"}],"affected":[{"package":{"name":"usbredir","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}},{"package":{"name":"usbredir","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/usbredir?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3700.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}