{"id":"UBUNTU-CVE-2023-53154","details":"parse_string in cJSON before 1.7.18 has a heap-based buffer over-read via {\"1\":1, with no trailing newline if cJSON_ParseWithLength is called.","modified":"2026-04-22T17:10:19.925960Z","published":"2025-05-23T16:15:00Z","related":["USN-7973-1"],"upstream":["CVE-2023-53154"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-53154"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-53154"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/issues/800"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/pull/852"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/compare/v1.7.17...v1.7.18"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/commit/3ef4e4e730e5efd381be612df41e1ff3f5bb3c32"},{"type":"REPORT","url":"https://github.com/DaveGamble/cJSON/commit/826cd6f842ae7e46ee38bbc097f9a34f2947388d"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7973-1"}],"affected":[{"package":{"name":"cjson","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.10-1.1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.10-1.1ubuntu0.1~esm1"}]}],"versions":["1.7.10-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.10-1.1ubuntu0.1~esm1","binary_name":"libcjson1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-53154.json"}},{"package":{"name":"cjson","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.15-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.15-1ubuntu0.1"}]}],"versions":["1.7.14-1","1.7.15-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.15-1ubuntu0.1","binary_name":"libcjson1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-53154.json"}},{"package":{"name":"cjson","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/cjson@1.7.17-1ubuntu0.1~esm3?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.17-1ubuntu0.1~esm3"}]}],"versions":["1.7.16-1","1.7.16-2","1.7.17-1","1.7.17-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.17-1ubuntu0.1~esm3","binary_name":"libcjson1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-53154.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}