CVE-2012-6056: Wireshark

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.

Affected products

• Wireshark Wireshark: version 1.8.0 only; version 1.8.1 only; version 1.8.2 only; version 1.8.3 only

Published 2012-12-05. Last modified 2026-06-16.