{"id":"ALPINE-CVE-2021-33560","details":"Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.","modified":"2026-09-15T08:17:46.659399462Z","published":"2021-06-08T11:15:07.767Z","upstream":["CVE-2021-33560"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-33560"}],"affected":[{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.8.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.8.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.8.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-33560.json"}},{"package":{"name":"libgcrypt","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/libgcrypt?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"1.9.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpi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