VDB
ALPINE-CVE-2021-3697
ALPINE-CVE-2021-3697
PUBLISHED
CVSS 7 HIGH
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | grub | 2.02_beta3-r7, 2.02-r13, 2.02-r11 |
| Alpine:v3.24 | grub | 0 |
| Alpine:v3.18 | grub | 2.06-r8, 2.06-r7, 2.06-r6 |
| Alpine:v3.23 | grub | 2.06-r10, 0, 2.02-r0 |
| Alpine:v3.22 | grub | 2.06-r5, 2.02-r12, 2.02-r14 |
| Alpine:v3.15 | grub | 2.02-r8, 2.02-r0, 2.02-r10 |
| Alpine:v3.16 | grub | 2.02-r9, 2.02_beta3-r0, 2.02_beta3-r1 |
| Alpine:v3.19 | grub | 2.02_beta3-r1, 2.02_beta3-r0, 2.06-r8 |
| Alpine:v3.20 | grub | 2.06-r10, 2.06-r0, 2.04-r3 |
| Alpine:v3.17 | grub | 2.02-r2, 2.02_beta3-r2, 2.02_beta3-r7 |
Timeline
- Jul 6, 2022 CVE Published
- Jun 15, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch