Multiple buffer overflows in DeleGate before 8.11.1 may allow attackers to cause a denial of service or execute arbitrary code, possibly due to "overflows on arrays."
Multiple buffer overflows in DeleGate 7.7.0 through 7.8.1 allow remote attackers to execute arbitrary code, as demonstrated using a long USER command to the POP proxy.
Buffer overflow in the ssl_prcert function in the SSLway filter (sslway.c) for DeleGate 8.9.2 and earlier allows remote attackers to execute arbitrary code via a certificate with a long (1) subject or (2) issuer name field.