{"id":"CVE-2020-27793","aliases":["ALPINE-CVE-2020-27793","EUVD-2020-20295","GHSA-wq2p-x6v8-v53j","UBUNTU-CVE-2020-27793"],"status":"published","title":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c....","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01178,"percentile":0.68102,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-193"],"published":"2022-08-19T22:43:00Z","modified":"2026-11-03T06:32:25Z","fixes":[{"ecosystem":"Alpine:v3.18","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"radare2","fixed_in":["4.4.0-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.18","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-r0"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"radare2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.6-3.1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"radare2","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"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"radare2","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"]}],"products":[{"vendor":"radare","product":"radare2"},{"vendor":"radare2","product":"radare2"}],"references":[{"url":"https://github.com/radareorg/radare2/issues/16304","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","report"]},{"url":"https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27793"},{"url":"https://github.com/advisories/GHSA-wq2p-x6v8-v53j"},{"url":"https://security.alpinelinux.org/vuln/CVE-2020-27793","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-27793","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-27793","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-27793","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T22:43:00Z","modified":"2024-08-04T16:25:42.389Z","cwes":["CWE-193"],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20295","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T22:43:00Z","modified":"2024-08-04T16:25:42Z","updated_at":"2026-11-03T03:07:11.950168Z"}],"ghsa":[{"id":"GHSA-wq2p-x6v8-v53j","title":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c....","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-20T00:00:30Z","modified":"2023-01-27T05:04:47Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:42:32.689787Z"}],"nvd":[{"id":"CVE-2020-27793","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T23:15:08.367Z","modified":"2026-06-17T03:09:39.15Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-193"],"updated_at":"2026-11-02T14:06:46.951463Z"}],"osv":[{"id":"ALPINE-CVE-2020-27793","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T23:15:08.367Z","modified":"2026-11-03T06:32:25.42249254Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:17:57.723967Z"},{"id":"CVE-2020-27793","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T23:15:08.367Z","modified":"2026-10-20T13:59:25.017534747Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"UBUNTU-CVE-2020-27793","description":"An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.","status":"published","published":"2022-08-19T23:15:00Z","modified":"2026-04-22T12:38:30.892215Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:24.541803Z"}]}}
