A flaw was found in Aardvark-dns, which is vulnerable to a Denial of Service attack due to the serial processing of TCP DNS queries. An attacker can exploit this flaw by keeping a TCP connection open indefinitely, causing the server to become unresponsive and resulting in other DNS queries timing out. This issue prevents legitimate users from accessing DNS services, thereby disrupting normal operations and causing service downtime.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade aardvark-dns | Jul 4, 2025 | Sep 4, 2024 |
| Alpine Linux | — | Upgrade aardvark-dns | Aug 8, 2025 | Sep 4, 2024 |
| Debian | — | Upgrade aardvark-dns | Jul 27, 2026 | Jul 27, 2026 |
| Oracle_linux | — | Upgrade aardvark-dns | May 26, 2025 | Sep 4, 2024 |
| Redhat_linux | — | Upgrade aardvark-dnsUpgrade aardvark-dns-debuginfoUpgrade aardvark-dns-debugsource | May 15, 2025 | Sep 4, 2024 |
| Rocky_linux | — | Upgrade aardvark-dns-debuginfoUpgrade aardvark-dnsUpgrade aardvark-dns-debugsource | Nov 14, 2025 | Oct 4, 2025 |
| Suse | — | Upgrade aardvark-dns | Dec 5, 2025 | May 30, 2025 |
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