VDB
ALPINE-CVE-2020-14311
ALPINE-CVE-2020-14311
PUBLISHED
CVSS 6 MEDIUM
Record from OSV · Published July 31, 2020
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| grub | Alpine:v3.17 | 2.06-r0 |
| grub | Alpine:v3.19 | 2.06-r0 |
| grub | Alpine:v3.20 | 2.06-r0 |
| grub | Alpine:v3.21 | 2.06-r0 |
| grub | Alpine:v3.23 | 2.06-r0 |
| grub | Alpine:v3.22 | 2.06-r0 |
| grub | Alpine:v3.24 | 2.06-r0 |
| grub | Alpine:v3.18 | 2.06-r0 |
Risk scores
CVSS 3.1
6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.17 | grub | 2.02-r7, 0, 2.02-r0 |
| Alpine:v3.19 | grub | 0, 2.02-r0, 2.02-r1 |
| Alpine:v3.20 | grub | 2.02_beta3-r1, 2.02-r0, 2.02-r8 |
| Alpine:v3.21 | grub | 2.02-r9, 2.02-r7, 2.02_beta3-r4 |
| Alpine:v3.23 | grub | 2.02-r19, 0, 2.02-r0 |
| Alpine:v3.22 | grub | 2.02-r6, 2.02-r9, 2.02_beta3-r0 |
| Alpine:v3.24 | grub | 0 |
| Alpine:v3.18 | grub | 0, 2.02-r0, 2.02-r1 |
Timeline
- Jul 31, 2020 CVE Published
- Aug 5, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch
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