CVE-2011-1770: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 4.4% chance of exploitation in the next 30 days.

Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to cause a denial of service via a Datagram Congestion Control Protocol (DCCP) packet with an invalid feature options length, which triggers a buffer over-read.

Affected products

• Fedoraproject Fedora: version 14 only; version 15 only
• Linux Linux Kernel: before 2.6.33.14 (fixed in 2.6.33.14)

Published 2011-06-24. Last modified 2026-06-16.