{"id":"CLSA-2026-1777036898","summary":"libssh2: Fix of 2 CVEs","details":"- CVE-2019-3858: fix zero-byte allocation in sftp_packet_read()\n- CVE-2019-3859: fix out-of-bounds reads in _libssh2_packet_require","modified":"2026-05-27T11:18:21.070453451Z","published":"2026-04-25T08:47:59Z","upstream":["CVE-2019-3858","CVE-2019-3859"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos6els/CLSA-2026-1777036898.html"}],"affected":[{"package":{"name":"libssh2","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libssh2?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2-3.0.1.el6_10.1.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1777036898.json"}},{"package":{"name":"libssh2-devel","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libssh2-devel?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2-3.0.1.el6_10.1.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1777036898.json"}},{"package":{"name":"libssh2-docs","ecosystem":"TuxCare:CentOS:6","purl":"pkg:rpm/tuxcare/libssh2-docs?distro=centos-6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2-3.0.1.el6_10.1.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos6els/CLSA-2026-1777036898.json"}}],"schema_version":"1.7.5"}