{"id":"AZL-43918","summary":"CVE-2021-4235 affecting package buildah 1.18.0-29","details":"Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.","modified":"2026-04-01T05:15:22.239566Z","published":"2022-12-27T22:15:11Z","upstream":["CVE-2021-4235"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4235"}],"affected":[{"package":{"name":"buildah","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/buildah"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.18.0-29"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-43918.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}