CVE-2011-3188

critical F5
CVSS v3 Base Score
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS Score
4.3%
Exploitation probability in 30 days
Top 11% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
High
Availability
High
Published: May 24, 2012 (5102 days ago)
Last Modified: April 29, 2026
Vendor: F5
Source: NVD

Description

The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values and sending crafted packets.

CWE

NVD-CWE-Other

Affected Products

linux linux kernelredhat enterprise linuxf5 arxf5 big-ip access policy managerf5 big-ip analyticsf5 big-ip application security managerf5 big-ip edge gatewayf5 big-ip global traffic managerf5 big-ip link controllerf5 big-ip local traffic manager

References

🔗 git.kernel.org 🔗 git.kernel.org 🔗 marc.info 🔗 www.kernel.org 🔗 www.openwall.com