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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 3.1 (excluding) |
| Linux | Ubuntu | hardy | * |
| Linux | Ubuntu | lucid | * |
| Linux | Ubuntu | maverick | * |
| Linux | Ubuntu | natty | * |
| Linux | Ubuntu | upstream | * |
| Linux-ec2 | Ubuntu | lucid | * |
| Linux-ec2 | Ubuntu | maverick | * |
| Linux-ec2 | Ubuntu | upstream | * |
| Linux-fsl-imx51 | Ubuntu | lucid | * |
| Linux-fsl-imx51 | Ubuntu | upstream | * |
| Linux-lts-backport-maverick | Ubuntu | lucid | * |
| Linux-lts-backport-maverick | Ubuntu | upstream | * |
| Linux-lts-backport-natty | Ubuntu | lucid | * |
| Linux-lts-backport-natty | Ubuntu | upstream | * |
| Linux-lts-backport-oneiric | Ubuntu | upstream | * |
| Linux-mvl-dove | Ubuntu | lucid | * |
| Linux-mvl-dove | Ubuntu | maverick | * |
| Linux-mvl-dove | Ubuntu | upstream | * |
| Linux-ti-omap4 | Ubuntu | maverick | * |
| Linux-ti-omap4 | Ubuntu | natty | * |
| Linux-ti-omap4 | Ubuntu | upstream | * |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-274.7.1.el5 | * |
| Red Hat Enterprise Linux 5.6 EUS - Server Only | RedHat | kernel-0:2.6.18-238.28.1.el5 | * |
| Red Hat Enterprise Linux 6 | RedHat | kernel-0:2.6.32-131.21.1.el6 | * |
| Red Hat Enterprise MRG 2 | RedHat | kernel-rt-0:2.6.33.9-rt31.79.el6rt | * |