{"id":"UBUNTU-CVE-2018-20459","details":"In radare2 through 3.1.3, the armass_assemble function in libr/asm/arch/arm/armass.c allows attackers to cause a denial-of-service (application crash by out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20457.","modified":"2026-05-20T16:03:37.557361786Z","published":"2018-12-25T19:29:00Z","upstream":["CVE-2018-20459"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20459"},{"type":"REPORT","url":"https://github.com/radare/radare2/commit/e5c14c167b0dcf0a53d76bd50bacbbcc0dfc1ae7"},{"type":"REPORT","url":"https://github.com/radare/radare2/issues/12418"},{"type":"REPORT","url":"https://github.com/devnexen/radare2/commit/88a8adf080a9f8ed5a4250a2507752e133ba54dd"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-20459"}],"affected":[{"package":{"name":"radare2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/radare2?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_version":"0.9.6-3.1ubuntu1","binary_name":"radare2"},{"binary_version":"0.9.6-3.1ubuntu1","binary_name":"radare2-plugins"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20459.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fbionic"},"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_version":"2.3.0+dfsg-2ubuntu0.1~esm1","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20459.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0+dfsg-1ubuntu1","5.5.0+dfsg-1.1ubuntu2","5.5.0+dfsg-1.1ubuntu3","5.5.0+dfsg-1.1ubuntu3+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.5.0+dfsg-1.1ubuntu3+esm1","binary_name":"libradare2-5.0.0t64"},{"binary_version":"5.5.0+dfsg-1.1ubuntu3+esm1","binary_name":"libradare2-common"},{"binary_version":"5.5.0+dfsg-1.1ubuntu3+esm1","binary_name":"radare2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20459.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/radare2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.8+dfsg-2","5.9.8+dfsg-2ubuntu0.25.10.1","5.9.8+dfsg-2ubuntu0.25.10.2"],"ecosystem_specific":{"binaries":[{"binary_version":"5.9.8+dfsg-2ubuntu0.25.10.2","binary_name":"libradare2-5.0.0t64"},{"binary_version":"5.9.8+dfsg-2ubuntu0.25.10.2","binary_name":"libradare2-common"},{"binary_version":"5.9.8+dfsg-2ubuntu0.25.10.2","binary_name":"radare2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20459.json"}},{"package":{"name":"radare2","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/radare2?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.8+dfsg-2","6.0.4+dfsg-1","6.0.7+ds-1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.0.7+ds-1","binary_name":"libradare2-6.0.0t64"},{"binary_version":"6.0.7+ds-1","binary_name":"libradare2-common"},{"binary_version":"6.0.7+ds-1","binary_name":"radare2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20459.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}