CVE-2026-35406Aardvark-dns has incorrect error handling for malformed tcp packets

Description

Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j PatchVendor Advisory
• https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 Patch
• https://github.com/containers/aardvark-dns/releases/tag/v1.17.1 Release Notes