{"id":"CLSA-2026-1782731604","summary":"libgcrypt: Fix of CVE-2021-33560","details":"- CVE-2013-4576: Normalize the MPIs to prevent possible side-channel\n  attacks\n- CVE-2014-3591: Use ciphertext blinding for Elgamal to prevent\n  possible side-channel attacks\n- CVE-2021-33560: Use of smaller K for ephemeral key in ElGamal\n  prevent generation of weak keys\n- CVE-2021-40528: Add exponent blinding as well to mitigate\n  side-channel attack on mpi_powm\n- tests: Add a benchmark for Elgamal","modified":"2026-10-26T09:43:35.904800852Z","published":"2026-06-29T11:13:40Z","upstream":["CVE-2013-4576","CVE-2014-3591","CVE-2021-33560","CVE-2021-40528"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1782731604.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33560"}],"affected":[{"package":{"name":"libgcrypt","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/libgcrypt?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.3-14.el7.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782731604.json"}},{"package":{"name":"libgcrypt-devel","ecosystem":"TuxCare:OracleLinux:7","purl":"pkg:rpm/tuxcare/libgcrypt-devel?distro=oraclelinux-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.3-14.el7.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782731604.json"}}],"schema_version":"1.9.0"}