{"id":"UBUNTU-CVE-2021-32495","details":"Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory afterwards. This will allow attackers to cause denial of service.","modified":"2026-04-22T12:54:18.337839Z","published":"2023-07-07T19:15:00Z","upstream":["CVE-2021-32495"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32495"},{"type":"REPORT","url":"https://github.com/radareorg/radare2/issues/18666"},{"type":"REPORT","url":"https://github.com/radareorg/radare2/commit/5e16e2d1c9fe245e4c17005d779fde91ec0b9c05"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-32495"}],"affected":[{"package":{"name":"radare2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/radare2@0.9.6-3.1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.6-3.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.6-3.1ubuntu1","binary_name":"libradare2-0.9.6"},{"binary_version":"0.9.6-3.1ubuntu1","binary_name":"libradare2-common"},{"binary_name":"radare2","binary_version":"0.9.6-3.1ubuntu1"},{"binary_name":"radare2-plugins","binary_version":"0.9.6-3.1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/radare2@2.3.0+dfsg-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.0+dfsg-1","2.0.0+dfsg-1","2.1.0+dfsg-1","2.3.0+dfsg-1","2.3.0+dfsg-2","2.3.0+dfsg-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libradare2-2.3","binary_version":"2.3.0+dfsg-2ubuntu0.1~esm1"},{"binary_name":"libradare2-common","binary_version":"2.3.0+dfsg-2ubuntu0.1~esm1"},{"binary_name":"radare2","binary_version":"2.3.0+dfsg-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/radare2@4.2.1+dfsg-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1+dfsg-5build1","4.0.0+dfsg-1","4.2.1+dfsg-1","4.2.1+dfsg-2","4.2.1+dfsg-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libradare2-4.2.1","binary_version":"4.2.1+dfsg-2ubuntu0.1~esm1"},{"binary_name":"libradare2-common","binary_version":"4.2.1+dfsg-2ubuntu0.1~esm1"},{"binary_name":"radare2","binary_version":"4.2.1+dfsg-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}