{"id":"MGASA-2021-0533","summary":"Updated busybox packages fix security vulnerability","details":"A NULL pointer dereference in Busybox's hush applet leads to denial of\nservice when processing a crafted shell command, due to missing validation\nafter a \\x03 delimiter character. This may be used for DoS under very rare\nconditions of filtered command input. (CVE-2021-42376)\n\nAn attacker-controlled pointer free in Busybox's hush applet leads to\ndenial of service and possible code execution when processing a crafted\nshell command, due to the shell mishandling the &&& string. This may be\nused for remote code execution under rare conditions of filtered command\ninput. (CVE-2021-42377)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\ngetvar_i function. (CVE-2021-42378)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nnext_input_file function. (CVE-2021-42379)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nclrvar function. (CVE-2021-42380)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nhash_init function. (CVE-2021-42381)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\ngetvar_s function. (CVE-2021-42382)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nevaluate function. (CVE-2021-42383)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nhandle_special function. (CVE-2021-42384)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nevaluate function. (CVE-2021-42385)\n\nA use-after-free in Busybox's awk applet leads to denial of service and\npossibly code execution when processing a crafted awk pattern in the\nnvalloc function. (CVE-2021-42386)\n","modified":"2026-02-04T02:48:35.861918Z","published":"2021-12-02T16:49:28Z","related":["CVE-2021-42376","CVE-2021-42377","CVE-2021-42378","CVE-2021-42379","CVE-2021-42380","CVE-2021-42381","CVE-2021-42382","CVE-2021-42383","CVE-2021-42384","CVE-2021-42385","CVE-2021-42386"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2021-0533.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=29697"},{"type":"REPORT","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/"}],"affected":[{"package":{"name":"busybox","ecosystem":"Mageia:8","purl":"pkg:rpm/mageia/busybox?arch=source&distro=mageia-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34.1-1.mga8"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2021-0533.json"}}],"schema_version":"1.7.3","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}