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.
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aardvark-dns
Vendor: containers
Actively Exploited
0
CISA KEV List
PoC / Exploits
0
Code Available
Total RCEs
0
Remote Access
Total CVEs
3
Total Indexed
Avg. EPSS
0.06%
Exploit Prob.
Security Vulnerability Index
Page 1 / 1
6.2
CVSS
Severity: MEDIUM
7.5
CVSS
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.
Severity: HIGH