{"id":"CVE-2021-32494","details":"Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.\n\n\n","modified":"2026-08-07T17:02:02.156864Z","published":"2023-07-07T19:15:09.507Z","references":[{"type":"FIX","url":"https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62"},{"type":"FIX","url":"https://github.com/radareorg/radare2/issues/18667"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/radareorg/radare2","events":[{"introduced":"ee753c25094c6e1c62dfb9596423824251dbc943"},{"last_affected":"ee753c25094c6e1c62dfb9596423824251dbc943"},{"fixed":"a07dedb804a82bc01c07072861942dd80c6b6d62"}],"database_specific":{"cpe":"cpe:2.3:a:radare:radare2:5.3.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"5.3.0"},{"last_affected":"5.3.0"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["5.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32494.json","vanir_signatures_modified":"2026-08-07T17:02:02Z","vanir_signatures":[{"id":"CVE-2021-32494-2834f321","signature_type":"Line","signature_version":"v1","source":"https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62","target":{"file":"libr/bin/p/bin_mach0.c"},"deprecated":false,"digest":{"line_hashes":["211921345178114093370428947692498009900","154239016323387656120110791473062974521","197634429748365036978182416865077052005","211074051710044500989675597504644777329","217178479459434555199088203652955891060"],"threshold":0.9}}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}