VDB
ALPINE-CVE-2021-23240
ALPINE-CVE-2021-23240
PUBLISHED
CVSS 7.800000190734863 HIGH
selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.
Risk Scores
CVSS v3.1
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:v3.14 | sudo | 1.6.9_p17-r1, 1.7.0-r0, 1.7.1-r0 |
| Alpine:v3.13 | sudo | 1.9.4, 0, 1.7.1-r0 |
| Alpine:v3.12 | sudo | 1.8.21_p2-r2, 1.7.4_p3-r0, 1.7.4_p4-r0 |
| Alpine:v3.11 | sudo | 1.7.1-r0, 1.7.2-r0, 1.7.2 |
| Alpine:v3.10 | sudo | 1.7.0-r0, 0, 1.7.0-r0 |
| Alpine:v3.15 | sudo | 1.8.27-r0, 1.8.23-r2, 1.8.21_p2-r2 |
Timeline
- Jan 12, 2021 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch