VDB
ALPINE-CVE-2021-3502
ALPINE-CVE-2021-3502
PUBLISHED
CVSS 5.5 MEDIUM
A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability.
Risk Scores
CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.22 | avahi | 0.6.28-r0, 0.6.28-r1, 0.6.29-r0 |
| Alpine:v3.19 | avahi | 0.8-r1, 0.8-r4, 0.8-r3 |
| Alpine:v3.20 | avahi | 0, 0.6.28-r0, 0.6.28-r1 |
| Alpine:v3.18 | avahi | 0.8-r4, 0, 0.6.28-r2 |
| Alpine:v3.23 | avahi | 0.6.31-r7, 0.8-r4, 0.8-r3 |
| Alpine:v3.21 | avahi | 0.8-r4, 0.6.28-r1, 0.6.28-r2 |
Timeline
- May 7, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch