{"id":"AZL-43843","summary":"CVE-2023-24021 affecting package mod_security 2.9.4-1","details":"Incorrect handling of '\\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.","modified":"2026-04-01T05:15:20.025853Z","published":"2023-01-20T19:15:18Z","upstream":["CVE-2023-24021"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-24021"}],"affected":[{"package":{"name":"mod_security","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/mod_security"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.9.4-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-43843.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}