{"id":"CVE-2020-23308","aliases":["EUVD-2020-16056","GHSA-rjr2-7fwp-m54q","UBUNTU-CVE-2020-23308"],"status":"published","title":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c...","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","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":"2026-11-10","score":0.01083,"percentile":0.65483,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2021-06-10T22:13:10Z","modified":"2026-10-20T10:52:49Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"iotjs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"iotjs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0+715-1ubuntu2"]}],"products":[{"vendor":"jerryscript","product":"jerryscript"}],"references":[{"url":"https://github.com/jerryscript-project/jerryscript/issues/3819","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-23308"},{"url":"https://github.com/advisories/GHSA-rjr2-7fwp-m54q"},{"url":"https://ubuntu.com/security/CVE-2020-23308","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-23308","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-23308","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2021-06-10T22:13:10Z","modified":"2024-08-04T14:58:14.726Z","updated_at":"2026-11-02T14:35:48.854892Z"}],"euvd":[{"id":"EUVD-2020-16056","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2021-06-10T22:13:10Z","modified":"2024-08-04T14:58:14Z","updated_at":"2026-11-03T03:07:21.661388Z"}],"ghsa":[{"id":"GHSA-rjr2-7fwp-m54q","title":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c...","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2022-05-24T19:05:14Z","modified":"2023-01-29T05:08:00Z","cwes":["CWE-617"],"updated_at":"2026-11-02T14:46:12.058225Z"}],"nvd":[{"id":"CVE-2020-23308","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2021-06-10T23:15:07.843Z","modified":"2026-06-17T03:04:39.417Z","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"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:06:43.288951Z"}],"osv":[{"id":"CVE-2020-23308","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2021-06-10T23:15:07.843Z","modified":"2026-10-20T10:52:49.017785173Z","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":"2026-11-02T15:44:15.534837Z"},{"id":"UBUNTU-CVE-2020-23308","description":"There is an Assertion 'context_p-\u003estack_top_uint8 == LEXER_EXPRESSION_START' at js-parser-expr.c:3565 in parser_parse_expression in JerryScript 2.2.0.","status":"published","published":"2021-06-10T23:15:00Z","modified":"2026-04-22T12:29:59.761099Z","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":"2026-11-02T15:54:23.905183Z"}]}}