{"id":"CVE-2023-29935","aliases":["AZL-26687","AZL-26693","BELL-CVE-2023-29935","DEBIAN-CVE-2023-29935","EUVD-2023-33465","GHSA-2wrh-j8p9-w4c5","UBUNTU-CVE-2023-29935"],"status":"published","title":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements...","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00221,"percentile":0.12752,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-617"],"published":"2023-05-05T00:00:00Z","modified":"2026-10-26T18:02:25Z","fixes":[{"ecosystem":"Azure Linux:2","package":"clang16","fixed_in":["16.0.0-2"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"rust","fixed_in":["1.72.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"clang16","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.0.0-2"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"rust","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.72.0-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"llvm-toolchain-13","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:13.0.1-11","1:13.0.1-12","1:13.0.1-13"]},{"source":"osv","ecosystem":"Debian:12","package":"llvm-toolchain-14","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:14.0.6-12","1:14.0.6-12+powerpc","1:14.0.6-13","1:14.0.6-14","1:14.0.6-16","1:14.0.6-16.1","1:14.0.6-16.1~exp1","1:14.0.6-17","1:14.0.6-18","1:14.0.6-19","1:14.0.6-20"]},{"source":"osv","ecosystem":"Debian:12","package":"llvm-toolchain-15","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:15.0.6-4","1:15.0.6-5~exp1","1:15.0.6-5~exp2","1:15.0.6-5~exp3","1:15.0.7-1","1:15.0.7-1+hurd.1","1:15.0.7-10","1:15.0.7-10.1~exp1","1:15.0.7-11","1:15.0.7-11.1","1:15.0.7-12","1:15.0.7-13","1:15.0.7-14","1:15.0.7-15","1:15.0.7-15+hurd.1","1:15.0.7-2","1:15.0.7-3","1:15.0.7-4","1:15.0.7-5","1:15.0.7-5~exp1","1:15.0.7-6","1:15.0.7-7","1:15.0.7-8","1:15.0.7-9"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"llvm-toolchain-13","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:13.0.0-2","1:13.0.0-9","1:13.0.1-2ubuntu1","1:13.0.1-2ubuntu2","1:13.0.1-2ubuntu2.1","1:13.0.1-2ubuntu2.2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"llvm-toolchain-14","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:14.0.0~+rc1-1","1:14.0.0~+rc1-1ubuntu4","1:14.0.0~+rc4-1ubuntu1","1:14.0.0-1ubuntu1","1:14.0.0-1ubuntu1.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"llvm-toolchain-15","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:15.0.6-3~ubuntu0.22.04.2","1:15.0.7-0ubuntu0.22.04.1","1:15.0.7-0ubuntu0.22.04.2","1:15.0.7-0ubuntu0.22.04.3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"llvm-toolchain-14","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:14.0.6-16","1:14.0.6-16build1","1:14.0.6-16build2","1:14.0.6-19build2","1:14.0.6-19build4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"llvm-toolchain-15","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:15.0.7-10","1:15.0.7-10build1","1:15.0.7-10build2","1:15.0.7-10ubuntu1","1:15.0.7-11","1:15.0.7-14build1","1:15.0.7-14build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"llvm-toolchain-14","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:14.0.6-20ubuntu1","1:14.0.6-20ubuntu3"]}],"products":[{"vendor":"llvm","product":"llvm"}],"references":[{"url":"https://github.com/llvm/llvm-project/issues/59182","tags":["x_transferred","exploit","Issue Tracking","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29935","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2wrh-j8p9-w4c5"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2023-29935","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-29935","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-29935","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-29935","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-29935","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T00:00:00Z","modified":"2025-01-29T20:35:54.746Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:35:28.643185Z"}],"euvd":[{"id":"EUVD-2023-33465","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T00:00:00Z","modified":"2025-01-29T20:35:54Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:09.506854Z"}],"ghsa":[{"id":"GHSA-2wrh-j8p9-w4c5","title":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements...","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:30:59Z","modified":"2024-04-04T03:49:39Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:56:18.466724Z"}],"nvd":[{"id":"CVE-2023-29935","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:09.783Z","modified":"2026-06-17T05:51:05.973Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:08:01.131774Z"}],"osv":[{"id":"AZL-26687","title":"CVE-2023-29935 affecting package clang16 for versions less than 16.0.0-2","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:09Z","modified":"2026-04-21T04:23:45.550429Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-26693","title":"CVE-2023-29935 affecting package rust for versions less than 1.72.0-1","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:09Z","modified":"2026-04-21T04:23:46.051623Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:03.093433Z"},{"id":"BELL-CVE-2023-29935","title":"CVE-2023-29935 does not affect BellSoft software","status":"withdrawn","published":"2023-10-18T13:45:40.677435Z","modified":"2026-01-26T09:46:26.828506Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:17.742221Z"},{"id":"CVE-2023-29935","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:09.783Z","modified":"2026-03-14T12:06:19.400512Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:31.468318Z"},{"id":"DEBIAN-CVE-2023-29935","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:09.783Z","modified":"2026-10-26T18:02:25.388519462Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:39.679062Z"},{"id":"UBUNTU-CVE-2023-29935","description":"llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) \u0026\u0026 \"operation was already replaced.","status":"published","published":"2023-05-05T15:15:00Z","modified":"2026-04-22T14:05:35.982893Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:20.997471Z"}]}}