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"pkg:apk/alpine/firefox-esr?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.20", "name": "firefox-esr", "purl": "pkg:apk/alpine/firefox-esr?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.21", "name": "firefox-esr", "purl": "pkg:apk/alpine/firefox-esr?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.22", "name": "firefox-esr", "purl": "pkg:apk/alpine/firefox-esr?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.23", "name": "firefox-esr", "purl": "pkg:apk/alpine/firefox-esr?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.21", "name": "librewolf", "purl": "pkg:apk/alpine/librewolf?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "75.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.22", "name": "librewolf", "purl": "pkg:apk/alpine/librewolf?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "75.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.23", "name": "librewolf", "purl": "pkg:apk/alpine/librewolf?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "75.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.24", "name": "librewolf", "purl": "pkg:apk/alpine/librewolf?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "75.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.12", "name": "mozjs68", "purl": "pkg:apk/alpine/mozjs68?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.16", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.17", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.18", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.19", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.20", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.21", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.22", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] }, { "ecosystem_specific": {}, "package": { "ecosystem": "Alpine:v3.23", "name": "thunderbird", "purl": "pkg:apk/alpine/thunderbird?arch=source" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "68.7.0-r0" } ], "type": "ECOSYSTEM" } ] } ], "details": "When reading from areas partially or fully outside the source resource with WebGL's \u003ccode\u003ecopyTexSubImage\u003c/code\u003e method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird \u003c 68.7.0, Firefox ESR \u003c 68.7, and Firefox \u003c 75.", "id": "ALPINE-CVE-2020-6821", "modified": "2026-11-03T06:17:57.753267624Z", "published": "2020-04-24T16:15:13.510Z", "references": [ { "type": "ADVISORY", "url": "https://security.alpinelinux.org/vuln/CVE-2020-6821" } ], "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "type": "CVSS_V3" } ], "upstream": [ "CVE-2020-6821" ] }