{"id":"USN-7973-1","summary":"cjson vulnerabilities","details":"It was discovered that cJSON incorrectly handled parsing large numbers. An\nattacker could possibly use this issue to cause a denial of service.\n(CVE-2023-26819)\n\nIt was discovered that cJSON may perform out-of-bounds read when processing\nspecially crafted JSON files using parse_object. An attacker could possibly\nuse this issue to expose sensitive information or crash the program.\n(CVE-2023-53154)\n\nIt was discovered that cJSON incorrectly validated array indices in JSON\npointers, which could result in an out-of-bounds memory access. An attacker\ncould possibly use this issue to cause a denial of service, or execute\narbitrary code. (CVE-2025-57052)","modified":"2026-02-10T04:50:48Z","published":"2026-01-23T04:53:55Z","related":["UBUNTU-CVE-2023-26819","UBUNTU-CVE-2023-53154","UBUNTU-CVE-2025-57052"],"upstream":["CVE-2023-26819","CVE-2023-53154","CVE-2025-57052","UBUNTU-CVE-2023-26819","UBUNTU-CVE-2023-53154","UBUNTU-CVE-2025-57052"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7973-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-26819"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-53154"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-57052"}],"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":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.7.10-1.1ubuntu0.1~esm1","binary_name":"libcjson-dev"},{"binary_version":"1.7.10-1.1ubuntu0.1~esm1","binary_name":"libcjson1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-26819"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-53154"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-57052"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}},{"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":{"availability":"No subscription required","binaries":[{"binary_version":"1.7.15-1ubuntu0.1","binary_name":"libcjson-dev"},{"binary_version":"1.7.15-1ubuntu0.1","binary_name":"libcjson1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-26819"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-53154"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-57052"}],"ecosystem":"Ubuntu:22.04:LTS"}}},{"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":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.7.17-1ubuntu0.1~esm3","binary_name":"libcjson-dev"},{"binary_version":"1.7.17-1ubuntu0.1~esm3","binary_name":"libcjson1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-26819"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-53154"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-57052"}],"ecosystem":"Ubuntu:Pro:24.04:LTS"}}},{"package":{"name":"cjson","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/cjson@1.7.18-3.1ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.18-3.1ubuntu0.1"}]}],"versions":["1.7.18-3","1.7.18-3.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.7.18-3.1ubuntu0.1","binary_name":"libcjson-dev"},{"binary_version":"1.7.18-3.1ubuntu0.1","binary_name":"libcjson1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7973-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-57052"}],"ecosystem":"Ubuntu:25.10"}}}],"schema_version":"1.7.3"}