{"id":"DEBIAN-CVE-2021-42376","details":"A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \\x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.","modified":"2026-09-01T20:04:33.474702892Z","published":"2021-11-15T21:15:07.647Z","upstream":["CVE-2021-42376"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-42376"}],"affected":[{"package":{"name":"busybox","ecosystem":"Debian:12","purl":"pkg:deb/debian/busybox?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.0-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42376.json"}},{"package":{"name":"busybox","ecosystem":"Debian:13","purl":"pkg:deb/debian/busybox?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.0-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42376.json"}},{"package":{"name":"busybox","ecosystem":"Debian:14","purl":"pkg:deb/debian/busybox?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.0-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42376.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}