VDB
DEBIAN-CVE-2020-27779
DEBIAN-CVE-2020-27779
PUBLISHED
CVSS 7.5 HIGH
Record from OSV · Published March 3, 2021
A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| grub2 | Debian:12 | 2.04-16 |
| grub2 | Debian:14 | 2.04-16 |
| grub2 | Debian:13 | 2.04-16 |
Risk scores
CVSS 3.1
7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | grub2 | 0 |
| Debian:14 | grub2 | 0 |
| Debian:13 | grub2 | 0 |
Timeline
- Mar 3, 2021 CVE Published
- Oct 26, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln DEBIAN-CVE-2020-27779
vulnetix vdb fixes DEBIAN-CVE-2020-27779Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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