CVE-2020-14310
- Source
- https://cve.org/CVERecord?id=CVE-2020-14310
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14310.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-14310
- Downstream
- Related
- Published
- 2020-07-31T22:15:11.500Z
- Modified
- 2026-03-10T23:05:26.418040Z
- 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
- [none]
- 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
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14310.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "14.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
}
]