{"id":"AZL-6457","summary":"CVE-2020-14309 affecting package grub2 for versions less than 2.06~rc1-7","details":"There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.","modified":"2026-04-01T05:20:49.045898Z","published":"2020-07-30T13:15:10Z","upstream":["CVE-2020-14309"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14309"}],"affected":[{"package":{"name":"grub2","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/grub2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06~rc1-7"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6457.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}