VDB
ALPINE-CVE-2021-3156
ALPINE-CVE-2021-3156
PUBLISHED
CVSS 7.800000190734863 HIGH
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.15 | sudo | 1.8.2, 1.9.5, 1.9.5-r0 |
| Alpine:v3.14 | sudo | *, 1.8.1-r0, 1.8.10-r0 |
| Alpine:v3.11 | sudo | 1.8.19_p1-r0, 1.8.19_p2-r0, 1.8.1p1-r0 |
| Alpine:v3.12 | sudo | 1.8.1-r0, 0, 1.6.9_p17-r1 |
| Alpine:v3.13 | sudo | 1.8.2, 1.8.13-r0, 1.8.14_p3-r0 |
| Alpine:v3.10 | sudo | 1.8.9, 1.8.9, 1.8.8-r0 |
Timeline
- Jan 26, 2021 CVE Published
- Feb 13, 2025 PoC Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated