CVE-2011-3188

CRITICAL

Linux Kernel < 3.1 - Denial of Service via Predictable IPv4/IPv6 Sequence Numbers

Title source: llm
STIX 2.1

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.

References (9)

Core 9
Core References
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/08/23/2
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=732658
Mailing List, Patch, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
Mailing List, Third Party Advisory vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=139447903326211&w=2

Scores

CVSS v3 9.1
EPSS 0.0432
EPSS Percentile 89.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Details

Status published
Products (17)
f5/arx 6.0.0 - 6.4.0
f5/big-ip_access_policy_manager 10.1.0 - 10.2.4
f5/big-ip_analytics 11.0.0 - 11.1.0
f5/big-ip_application_security_manager 10.0.0 - 10.2.4
f5/big-ip_edge_gateway 10.1.0 - 10.2.4
f5/big-ip_global_traffic_manager 10.0.0 - 10.2.4
f5/big-ip_link_controller 10.0.0 - 10.2.4
f5/big-ip_local_traffic_manager 10.0.0 - 10.2.4
f5/big-ip_protocol_security_module 10.0.0 - 10.2.4
f5/big-ip_wan_optimization_manager 10.0.0 - 10.2.4
... and 7 more
Published May 24, 2012
Tracked Since Feb 18, 2026