CVE-2026-62309

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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Produits concernés

• coredns
• Coredns.io coredns

Scores CVSS

Faiblesses (CWE)

• CWE-476

Références

• https://github.com/coredns/coredns/commit/60a439dd4febfcd78e3779e952fe3fbf3c16bb1f Patch
• https://github.com/coredns/coredns/pull/8154 Issue TrackingPatch
• https://github.com/coredns/coredns/releases/tag/v1.14.4 Release Notes
• https://github.com/coredns/coredns/security/advisories/GHSA-9rvv-m5g5-wc8r ExploitThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories