{"id":"CVE-2021-28831","details":"decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.","modified":"2026-03-15T22:37:02.322031Z","published":"2021-03-19T05:15:13.150Z","related":["MGASA-2021-0310","SUSE-SU-2021:3531-1","SUSE-SU-2022:0135-1","SUSE-SU-2022:0135-2","SUSE-SU-2022:3959-1","SUSE-SU-2022:4253-1","openSUSE-SU-2021:1408-1","openSUSE-SU-2021:3531-1","openSUSE-SU-2022:0135-1","openSUSE-SU-2024:11738-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20250509-0005/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-09"},{"type":"FIX","url":"https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mirror/busybox","events":[{"introduced":"fb957125d8aa83c9df6e54292327983a51ee7ffd"},{"last_affected":"d811a8cd01cb105869de477317839929a3444312"}],"database_specific":{"versions":[{"introduced":"1.32.0"},{"last_affected":"1.32.1"}]}}],"versions":["1_32_0","1_32_1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28831.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}