{"id":"AZL-6459","summary":"CVE-2020-14311 affecting package grub2 for versions less than 2.06~rc1-7","details":"There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.","modified":"2026-04-01T05:20:49.783484Z","published":"2020-07-31T22:15:11Z","upstream":["CVE-2020-14311"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14311"}],"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-6459.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:N/I:H/A:H"}]}