CVE-2011-2699: Linux Kernel

High severity, CVSS 7.5. EPSS: 5.6% chance of exploitation in the next 30 days.

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

Affected products

• Linux Linux Kernel: before 3.1 (fixed in 3.1)
• Red Hat Enterprise Linux: version 4.0 only
• Red Hat Enterprise Mrg: version 2.0 only

Published 2012-05-24. Last modified 2026-06-16.