DEBIAN-CVE-2020-14310

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Source
https://security-tracker.debian.org/tracker/CVE-2020-14310
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-14310.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-14310
Upstream
Published
2020-07-31T22:15:11Z
Modified
2025-09-19T06:19:33Z
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

Debian:11 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.04-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.04-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.04-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.04-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}