{"id":"ALPINE-CVE-2021-3470","details":"A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.","modified":"2025-11-19T06:19:02.086259Z","published":"2021-03-31T14:15:20.937Z","upstream":["CVE-2021-3470"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-3470"}],"affected":[{"package":{"name":"redis","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/redis?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.11-r0"}]}],"versions":["2.4.14-r0","2.4.14-r1","2.4.14-r2","2.4.16-r0","2.6.16-r0","2.6.17-r0","2.8.10-r0","2.8.11-r0","2.8.12-r0","2.8.13-r0","2.8.14-r0","2.8.17-r0","2.8.19-r0","2.8.9-r0","2.8.9-r1","2.8.9-r2","3.0.0-r0","3.0.0-r1","3.0.1-r0","3.0.2-r0","3.0.3-r0","3.0.4-r0","3.0.5-r0","3.0.5-r1","3.0.6-r0","3.0.7-r0","3.0.7-r1","3.2.0-r0","3.2.1-r0","3.2.3-r0","3.2.4-r0","3.2.5-r0","3.2.7-r0","3.2.8-r0","3.2.9-r0","4.0.10-r0","4.0.10-r1","4.0.11-r0","4.0.12-r0","4.0.13-r0","4.0.2-r0","4.0.2-r1","4.0.5-r0","4.0.6-r0","4.0.8-r0","4.0.9-r0","4.0.9-r1","4.0.9-r2","5.0.4-r0","5.0.5-r0","5.0.7-r0","5.0.8-r0","5.0.9-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3470.json"}},{"package":{"name":"redis","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/redis?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.9-r0"}]}],"versions":["2.4.14-r0","2.4.14-r1","2.4.14-r2","2.4.16-r0","2.6.16-r0","2.6.17-r0","2.8.10-r0","2.8.11-r0","2.8.12-r0","2.8.13-r0","2.8.14-r0","2.8.17-r0","2.8.19-r0","2.8.9-r0","2.8.9-r1","2.8.9-r2","3.0.0-r0","3.0.0-r1","3.0.1-r0","3.0.2-r0","3.0.3-r0","3.0.4-r0","3.0.5-r0","3.0.5-r1","3.0.6-r0","3.0.7-r0","3.0.7-r1","3.2.0-r0","3.2.1-r0","3.2.3-r0","3.2.4-r0","3.2.5-r0","3.2.7-r0","3.2.8-r0","3.2.9-r0","4.0.10-r0","4.0.10-r1","4.0.11-r0","4.0.12-r0","4.0.13-r0","4.0.2-r0","4.0.2-r1","4.0.5-r0","4.0.6-r0","4.0.8-r0","4.0.9-r0","4.0.9-r1","4.0.9-r2","5.0.4-r0","5.0.5-r0","5.0.7-r0","5.0.8-r0","5.0.9-r0","6.0.1-r0","6.0.4-r0","6.0.5-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3470.json"}},{"package":{"name":"redis","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/redis?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-r0"}]}],"versions":["2.4.14-r0","2.4.14-r1","2.4.14-r2","2.4.16-r0","2.6.16-r0","2.6.17-r0","2.8.10-r0","2.8.11-r0","2.8.12-r0","2.8.13-r0","2.8.14-r0","2.8.17-r0","2.8.19-r0","2.8.9-r0","2.8.9-r1","2.8.9-r2","3.0.0-r0","3.0.0-r1","3.0.1-r0","3.0.2-r0","3.0.3-r0","3.0.4-r0","3.0.5-r0","3.0.5-r1","3.0.6-r0","3.0.7-r0","3.0.7-r1","3.2.0-r0","3.2.1-r0","3.2.3-r0","3.2.4-r0","3.2.5-r0","3.2.7-r0","3.2.8-r0","3.2.9-r0","4.0.10-r0","4.0.10-r1","4.0.11-r0","4.0.12-r0","4.0.13-r0","4.0.2-r0","4.0.2-r1","4.0.5-r0","4.0.6-r0","4.0.8-r0","4.0.9-r0","4.0.9-r1","4.0.9-r2","5.0.4-r0","5.0.5-r0","5.0.7-r0","5.0.8-r0","5.0.9-r0","6.0.1-r0","6.0.10-r0","6.0.4-r0","6.0.5-r0","6.0.9-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3470.json"}},{"package":{"name":"redis","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/redis?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-r0"}]}],"versions":["2.4.14-r0","2.4.14-r1","2.4.14-r2","2.4.16-r0","2.6.16-r0","2.6.17-r0","2.8.10-r0","2.8.11-r0","2.8.12-r0","2.8.13-r0","2.8.14-r0","2.8.17-r0","2.8.19-r0","2.8.9-r0","2.8.9-r1","2.8.9-r2","3.0.0-r0","3.0.0-r1","3.0.1-r0","3.0.2-r0","3.0.3-r0","3.0.4-r0","3.0.5-r0","3.0.5-r1","3.0.6-r0","3.0.7-r0","3.0.7-r1","3.2.0-r0","3.2.1-r0","3.2.3-r0","3.2.4-r0","3.2.5-r0","3.2.7-r0","3.2.8-r0","3.2.9-r0","4.0.10-r0","4.0.10-r1","4.0.11-r0","4.0.12-r0","4.0.13-r0","4.0.2-r0","4.0.2-r1","4.0.5-r0","4.0.6-r0","4.0.8-r0","4.0.9-r0","4.0.9-r1","4.0.9-r2","5.0.4-r0","5.0.5-r0","5.0.7-r0","5.0.8-r0","5.0.9-r0","6.0.1-r0","6.0.10-r0","6.0.4-r0","6.0.5-r0","6.0.9-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3470.json"}},{"package":{"name":"redis","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/redis?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-r0"}]}],"versions":["2.4.14-r0","2.4.14-r1","2.4.14-r2","2.4.16-r0","2.6.16-r0","2.6.17-r0","2.8.10-r0","2.8.11-r0","2.8.12-r0","2.8.13-r0","2.8.14-r0","2.8.17-r0","2.8.19-r0","2.8.9-r0","2.8.9-r1","2.8.9-r2","3.0.0-r0","3.0.0-r1","3.0.1-r0","3.0.2-r0","3.0.3-r0","3.0.4-r0","3.0.5-r0","3.0.5-r1","3.0.6-r0","3.0.7-r0","3.0.7-r1","3.2.0-r0","3.2.1-r0","3.2.3-r0","3.2.4-r0","3.2.5-r0","3.2.7-r0","3.2.8-r0","3.2.9-r0","4.0.10-r0","4.0.10-r1","4.0.11-r0","4.0.12-r0","4.0.13-r0","4.0.2-r0","4.0.2-r1","4.0.5-r0","4.0.6-r0","4.0.8-r0","4.0.9-r0","4.0.9-r1","4.0.9-r2","5.0.4-r0","5.0.5-r0","5.0.7-r0","5.0.8-r0","5.0.9-r0","6.0.1-r0","6.0.10-r0","6.0.4-r0","6.0.5-r0","6.0.9-r0"],"ecosystem_specific":{},"database_speci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