{"id":"USN-7472-1","summary":"micropython vulnerabilities","details":"Junwha Hong and Wonil Jang discovered that Micropython incorrectly handled\nthe length of a buffer in mp_vfs_umount, leading to a heap-based buffer \noverflow vulnerability. If a user or automated system were tricked into\nopening a specially crafted file, an attacker could possibly use this issue\nto cause a denial of service or possibly execute arbitrary code.\n(CVE-2024-8946)\n\n\nJunwha Hong and Wonil Jang discovered that Micropython incorrectly handled\nmemory, leading to a use-after-free vulnerability under certain \ncircumstances. If a user or automated system were tricked into opening a \nspecially crafted file, an attacker could possibly use this issue to\ncause a denial of service or possibly execute arbitrary code. \n(CVE-2024-8947)\n\nIt was discovered that Middleware USB Host MCU Component incorrectly\nhandled memory, leading to a buffer overflow vulnerability, If a user or \nautomated system were tricked into opening a specially crafted file, an \nattacker could possibly use this issue to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-42553)\n","modified":"2026-04-24T10:00:30.336767Z","published":"2025-05-01T13:04:26Z","related":["UBUNTU-CVE-2021-42553","UBUNTU-CVE-2024-8946","UBUNTU-CVE-2024-8947"],"upstream":["CVE-2021-42553","CVE-2024-8946","CVE-2024-8947","UBUNTU-CVE-2021-42553","UBUNTU-CVE-2024-8946","UBUNTU-CVE-2024-8947"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7472-1"}],"affected":[{"package":{"name":"micropython","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/micropython@1.12-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12-1ubuntu0.1~esm1"}]}],"versions":["1.12-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.12-1ubuntu0.1~esm1","binary_name":"micropython"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7472-1.json"}},{"package":{"name":"micropython","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/micropython@1.17+ds-1.1ubuntu2+esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17+ds-1.1ubuntu2+esm1"}]}],"versions":["1.17+ds-1ubuntu1","1.17+ds-1.1","1.17+ds-1.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.17+ds-1.1ubuntu2+esm1","binary_name":"micropython"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7472-1.json"}},{"package":{"name":"micropython","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/micropython@1.22.1+ds-1ubuntu0.24.04.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.22.1+ds-1ubuntu0.24.04.1~esm1"}]}],"versions":["1.19.1+ds-1","1.22.1+ds-1","1.22.1+ds-1build1","1.22.1+ds-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22.1+ds-1ubuntu0.24.04.1~esm1","binary_name":"micropython"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7472-1.json"}}],"schema_version":"1.7.5"}