{"id":"AZL-6458","summary":"CVE-2020-14310 affecting package grub2 for versions less than 2.06~rc1-7","details":"There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.","modified":"2026-04-01T05:20:21.728621Z","published":"2020-07-31T22:15:11Z","upstream":["CVE-2020-14310"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14310"}],"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-6458.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"}]}