VDB
CVE-2021-3502
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.
EPSS 0.37% · 30.5th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.37%
30.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | avahi | 0 |
Timeline
- May 7, 2021 CVE Published
- May 8, 2021 EPSS Score
- Jul 11, 2021 EPSS Score
- Sep 11, 2021 EPSS Score
- Nov 12, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Mar 16, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 17, 2022 EPSS Score
- Jul 19, 2022 EPSS Score
- Sep 19, 2022 EPSS Score
- Nov 20, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-3502 third-party-advisory
- https://github.com/lathiat/avahi/pull/324 third-party-advisory
- https://ubuntu.com/security/notices/USN-5008-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3502 third-party-advisory