DEBIAN-CVE-2020-14310
- Source
- https://security-tracker.debian.org/tracker/CVE-2020-14310
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-14310.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2020-14310
- Upstream
- Downstream
- Published
- 2020-07-31T22:15:11Z
- Modified
- 2026-09-11T11:01:13Z
- 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 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.
- References
Affected packages
Debian:12 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source&distro=bookworm
Debian:13 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source&distro=trixie
Debian:14 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source&distro=forky