{"id":"ALPINE-CVE-2021-3677","details":"A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.","modified":"2026-08-27T22:18:01.637417298Z","published":"2022-03-02T23:15:08.900Z","upstream":["CVE-2021-3677"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-3677"}],"affected":[{"package":{"name":"postgresql","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/postgresql?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0"},{"fixed":"12.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/postgresql?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0"},{"fixed":"12.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/postgresql?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/postgresql?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql13","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/postgresql13?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql13","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/postgresql13?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql14","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/postgresql14?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql14","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/postgresql14?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql14","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/postgresql14?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql14","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/postgresql14?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql15","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/postgresql15?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql15","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/postgresql15?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql15","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/postgresql15?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}},{"package":{"name":"postgresql15","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/postgresql15?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3677.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}