{"id":"RLSA-2021:2575","summary":"Moderate: lz4 security update","details":"The lz4 packages provide support for LZ4, a very fast, lossless compression algorithm that provides compression speeds of 400 MB/s per core and scales with multicore CPUs. It also features an extremely fast decoder that reaches speeds of multiple GB/s per core and typically reaches RAM speed limits on multicore systems.\n\nSecurity Fix(es):\n\n* lz4: memory corruption due to an integer overflow bug caused by memmove argument (CVE-2021-3520)\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.","modified":"2026-02-05T01:15:07.351751Z","published":"2021-06-29T13:43:40Z","upstream":["CVE-2021-3520"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2021:2575"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1954559"}],"affected":[{"package":{"name":"lz4","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/lz4?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.8.3-3.el8_4"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2021:2575.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}