{"id":"CVE-2019-19958","details":"In libIEC61850 1.4.0, StringUtils_createStringFromBuffer in common/string_utilities.c has an integer signedness issue that could lead to an attempted excessive memory allocation and denial of service.","modified":"2026-08-07T14:52:59.140734Z","published":"2019-12-24T22:15:11.323Z","references":[{"type":"EVIDENCE","url":"https://github.com/mz-automation/libiec61850/issues/198"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mz-automation/libiec61850","events":[{"introduced":"6f7df75d85786b0e169ea007be959a51159a83cb"},{"last_affected":"6f7df75d85786b0e169ea007be959a51159a83cb"}],"database_specific":{"cpe":"cpe:2.3:a:mz-automation:libiec61850:1.4.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.4.0"},{"last_affected":"1.4.0"}],"source":"CPE_STRING"}}],"versions":["1.4.0","v1.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19958.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}