Ettercap 0.8.1 vulnerabilities

The radius_get_attribute function in Ettercap 0.8.1 performs an incorrect cast, allowing remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors, leading to a stack-based buffer overflow.

Ettercap version 0.8.1 does not validate certain return values, allowing remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted data passed to the parse_line or dissector_imap functions.

A heap-based buffer overflow in the nbns_spoof function in Ettercap 0.8.1 can be exploited by remote attackers. Attackers can cause a denial of service or potentially execute arbitrary code by sending a large netbios packet.

An integer underflow in Ettercap 0.8.1 allows remote attackers to cause a denial of service (out-of-bounds write) and possibly execute arbitrary code. This can occur in several functions, including dissector_dhcp, dissector_gg, and dissector_TN3270.

The dissector_postgresql function in Ettercap before version 0.8.1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted password length, which triggers a 0 character to be written to an arbitrary memory location.

The strescape function in ec_strings.c in Ettercap 0.8.2 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted filter that is mishandled by etterfilter.

In Ettercap up to version 0.8.3, a heap-based buffer overflow exists in the FUNC_DECODER function of the GG Dissector component (file ec_gg.c). Manipulation of the gg argument can lead to a remote attack, though exploitation is difficult.