{"id":"ALSA-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":"2026-02-04T04:26:05.531588Z","published":"2021-06-29T13:43:40Z","related":["CVE-2021-3520"],"references":[{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2021-2575.html"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2021-3520"}],"affected":[{"package":{"name":"lz4","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/lz4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-3.el8_4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:2575.json"}},{"package":{"name":"lz4-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/lz4-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-3.el8_4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:2575.json"}},{"package":{"name":"lz4-libs","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/lz4-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-3.el8_4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:2575.json"}}],"schema_version":"1.7.3"}