{"schema_version": "1.7.0", "id": "RLSA-2021:4409", "modified": "2023-02-02T14:11:14.366637Z", "published": "2021-11-09T09:18:49Z", "upstream": ["CVE-2021-33560"], "summary": "Moderate: libgcrypt security and bug fix update", "details": "The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.\n\nSecurity Fix(es):\n\n* libgcrypt: mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm (CVE-2021-33560)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "libgcrypt", "purl": "pkg:rpm/rocky-linux/libgcrypt?distro=rocky-linux-8-5-legacy&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:1.8.5-6.el8"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2021:4409"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970096"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1976137"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}