{"id":"ALPINE-CVE-2021-20216","details":"A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is to system availability.","modified":"2025-12-03T22:50:40.444859Z","published":"2021-03-25T19:15:13.283Z","upstream":["CVE-2021-20216"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-20216"}],"affected":[{"package":{"name":"privoxy","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.31-r0"}]}],"versions":["3.0.16-r0","3.0.16-r1","3.0.17-r0","3.0.17-r1","3.0.18-r0","3.0.19-r0","3.0.19-r1","3.0.21-r0","3.0.21-r1","3.0.21-r2","3.0.22-r0","3.0.23-r0","3.0.23-r1","3.0.24-r0","3.0.24-r1","3.0.24-r2","3.0.26-r0","3.0.28-r0","3.0.29-r0","3.0.30-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-20216.json"}},{"package":{"name":"privoxy","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/privoxy?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduc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