{"id":"CVE-2018-18521","details":"Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.","modified":"2026-03-15T21:55:20.664507Z","published":"2018-10-19T17:29:00.873Z","related":["MGASA-2019-0222","SUSE-SU-2019:1486-1","SUSE-SU-2019:1733-1","SUSE-SU-2022:2614-1","SUSE-SU-2022:2614-2","openSUSE-SU-2019:1590-1"],"references":[{"type":"ADVISORY","url":"https://usn.ubuntu.com/4012-1/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2197"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html"},{"type":"REPORT","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=23786"},{"type":"FIX","url":"https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://sourceware.org/git/elfutils.git","events":[{"introduced":"0"},{"last_affected":"52b6b2f1f49e7385527e9f311f248092be0c0b61"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.174"}]}}],"versions":["elfutils-0.120","elfutils-0.121","elfutils-0.122","elfutils-0.123","elfutils-0.124","elfutils-0.125","elfutils-0.126","elfutils-0.127","elfutils-0.128","elfutils-0.129","elfutils-0.130","elfutils-0.131","elfutils-0.132","elfutils-0.133","elfutils-0.134","elfutils-0.135","elfutils-0.136","elfutils-0.137","elfutils-0.138","elfutils-0.139","elfutils-0.140","elfutils-0.141","elfutils-0.142","elfutils-0.143","elfutils-0.144","elfutils-0.145","elfutils-0.146","elfutils-0.147","elfutils-0.148","elfutils-0.149","elfutils-0.150","elfutils-0.151","elfutils-0.152","elfutils-0.153","elfutils-0.154","elfutils-0.155","elfutils-0.156","elfutils-0.157","elfutils-0.158","elfutils-0.159","elfutils-0.160","elfutils-0.161","elfutils-0.162","elfutils-0.163","elfutils-0.164","elfutils-0.165","elfutils-0.166","elfutils-0.167","elfutils-0.168","elfutils-0.169","elfutils-0.170","elfutils-0.171","elfutils-0.172","elfutils-0.173","elfutils-0.174"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18521.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.10"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}