CyberRota Analysis
AI-GeneratedCoreDNS versions prior to 1.14.4 are vulnerable to a denial-of-service attack triggered by a single malformed 28-byte UDP datagram when the proxyproto plugin is enabled. This flaw can cause the CoreDNS process to crash, impacting DNS resolution services. Organizations using CoreDNS should prioritize upgrading to version 1.14.4 or later to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
CoreDNS is a DNS server written in Go. Prior to 1.14.4, a single 28-byte UDP datagram can crash the CoreDNS process when the proxyproto plugin is enabled because plugin/pkg/proxyproto/proxyproto.go PacketConn.ReadFrom handles a PROXY v2 header with non-UDP transport such as family byte 0x11, reassigns addr from a nil readFrom result after parseProxyProtocol errors, and calls addr.String() in the warning log before ServeDNS recovery applies. This issue is fixed in version 1.14.4.
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