{"id":"CVE-2018-7549","details":"In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p.","modified":"2026-05-18T05:50:13.290340465Z","published":"2018-02-27T22:29:00.653Z","related":["SUSE-SU-2018:1072-1","SUSE-SU-2022:14910-1"],"database_specific":{"unresolved_ranges":[{"source":"CPE_FIELD","cpes":["cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"14.04"},{"last_affected":"16.04"},{"last_affected":"17.10"}],"vendor_product":"canonical:ubuntu_linux"},{"source":"CPE_FIELD","cpes":["cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"7.0"}],"vendor_product":"redhat:enterprise_linux_desktop"},{"source":"CPE_FIELD","cpes":["cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"7.0"}],"vendor_product":"redhat:enterprise_linux_server"},{"source":"CPE_FIELD","cpes":["cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"7.0"}],"vendor_product":"redhat:enterprise_linux_workstation"}]},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3073"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201805-10"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3593-1/"},{"type":"FIX","url":"https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zsh-users/zsh","events":[{"introduced":"0"},{"last_affected":"6ff4787e830f8edb3a7e32490a88a131e4b62f7f"}],"database_specific":{"source":"CPE_FIELD","cpe":"cpe:2.3:a:zsh:zsh:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"5.4.2"}]}}],"versions":["zsh-5.4.2","zsh-5.4.1","5.4.1","zsh-5.4","5.4","5.3.1-test-2","zsh-5.3.1","zsh-5.3","zsh-5.2-test-3","zsh-5.2-test-2","zsh-5.2-test-1","zsh-5.2","zsh-5.1.1-test-3","zsh-5.1.1-test-2","5.1.1-test-2","zsh-5.1.1-test-1","zsh-5.1.1","zsh-5.1-test-1","zsh-5.1","zsh-5.0.8-test-3","zsh-5.0.8","zsh-5.0.7-dev-4","zsh-5.0.7-dev-2","zsh-5.0.7","zsh-5.0.6-dev-1","zsh-5.0.6","zsh-5.0.5-dev-3","zsh-5.0.5-dev-2","zsh-5.0.5-dev-1","zsh-5.0.5","zsh-5.0.4","zsh-5.0.3","zsh-5.0.2-test-3","zsh-5.0.2-test-2","zsh-5.0.2-test-1","zsh-5.0.2","zsh-5.0.1","zsh-5.0.0-test-1","zsh-5.0.0","zsh-4.3.17-test-2","zsh-4.3.17","zsh-4.3.16","zsh-4.3.15","zsh-4.3.14","zsh-4.3.13","zsh-4.3.12-test-3","zsh-4.3.12","zsh-4.3.11-dev-4","zsh-4.3.11","zsh-4.3.10-test-3","zsh-4.3.10-dev-2","zsh-4.3.10","zsh-4.3.9-dev-5","zsh-4.3.9-dev-3","zsh-4.3.9","zsh-4.3.8","zsh-4.3.7","zsh-4.3.6-dev-2","zsh-4.3.6-dev-1","zsh-4.3.6","zsh-4.3.5-dev-4","zsh-4.3.5-dev-3","zsh-4.3.5-dev-2","zsh-4.3.5-dev-1","zsh-4.3.5","zsh-4.3.4-dev-8","zsh-4.3.4-dev-7","zsh-4.3.4-dev-6","zsh-4.3.4-dev-5","zsh-4.3.4-dev-4","zsh-4.3.4-dev-2","zsh-4.3.4","zsh-4.3.3","zsh-4.3.2","zsh-4.3.1","zsh-4.3.0-dev-5","zsh-4.3.0-dev-4","zsh-4.3.0-dev-3","zsh-4.2.3","zsh-4.2.2","zsh-4.2.1","zsh-4.2.1-test-A","zsh-4.2.0","zsh-4.2.0-pre-4","zsh-4.2.0-pre-3","zsh-4.2.0-pre-2","zsh-4.2.0-pre-1","zsh-4.1.1","zsh-4.1.1-test-3","zsg-4.1.1-test-2","zsh-4.1.1-test-1","zsh-4.1.0-dev-7","post-opt-arg","pre-opt-arg","zsh-4.1.0-dev-5","zsh-4.1.0-dev-4","zsh-4.1.0-dev-3","zsh-4.1.0-dev-2","zsh-4.1.0-dev-1","zsh-4.0.1","zsh-4.0.1-pre-5","zsh-4.0.1-pre-4","zsh-4.0.1-pre-3","pre-func-move","zsh-4.0.2-pre-2","zsh-4.0.1-pre-1","zsh-3.1.9-dev-8","zsh-3.1.9-dev-7","zsh-3.1.9-dev-6","zsh-3.1.9-dev-5","zsh-3.1.9-dev-4","zsh-3.1.9-dev-3","zsh-3.1.9-dev-2","zsh-3.1.9-dev-1","zsh-3.1.9","zsh-3.1.8","zsh-3.1.7","zsh-3.1.7-pre-4","zsh-3.1.7-pre-3","zsh-3.1.7-pre-2","zsh-3.1.7-prep-1","zsh-3.1.6-dev-22","zsh-3.1.6-dev-21"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-7549.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}