AZL-6458
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6458.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-6458
- Upstream
- Published
- 2020-07-31T22:15:11Z
- Modified
- 2026-04-01T05:20:21.728621Z
- Severity
-
- 6.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- 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 readsectionasstring(). It expects a font name to be at max UINT32MAX - 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 UINT32MAX, leading to readsectionasstring() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
- References