VDB
ALPINE-CVE-2019-18634
ALPINE-CVE-2019-18634
PUBLISHED
CVSS 7.800000190734863 HIGH
In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
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:v3.11 | sudo | 1.8.22-r2, 1.8.21_p2-r2, 1.8.21_p2-r0 |
| Alpine:v3.12 | sudo | 1.8.1p1-r0, 1.6.9_p17-r1, 1.7.0-r0 |
| Alpine:v3.13 | sudo | 1.7.4, 1.7.4, 1.7.4 |
| Alpine:v3.14 | sudo | 0, 1.6.9_p17-r1, 1.7.0-r0 |
| Alpine:v3.15 | sudo | 1.8.17-r0, 1.8.21_p2-r0, 1.8.21_p2-r2 |
| Alpine:v3.10 | sudo | 1.8.5_p1-r0, 1.8.5_p2-r0, 1.8.6-r0 |
| Alpine:v3.9 | sudo | 1.8.9, 1.8.0-r1, 0 |
| Alpine:v3.8 | sudo | 1.8.9, 0, 1.6.9_p17-r1 |
Timeline
- Jan 29, 2020 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch