The cfg80211_wext_giwessid function in net/wireless/wext-compat.c in the Linux kernel before 2.6.36-rc3-next-20100831 does not properly initialize certain structure members, which allows local users to leverage an off-by-one error in the ioctl_standard_iw_point function in net/wireless/wext-core.c, and obtain potentially sensitive information from kernel heap memory, via vectors involving an SIOCGIWESSID ioctl call that specifies a large buffer size.
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 2.6.36 (excluding) |
| Linux_kernel | Linux | 2.6.36 (including) | 2.6.36 (including) |
| Linux_kernel | Linux | 2.6.36-rc1 (including) | 2.6.36-rc1 (including) |
| Linux_kernel | Linux | 2.6.36-rc2 (including) | 2.6.36-rc2 (including) |
| MRG for RHEL-5 | RedHat | kernel-rt-0:2.6.33.7-rt29.45.el5rt | * |
| Red Hat Enterprise Linux 6 | RedHat | kernel-0:2.6.32-71.7.1.el6 | * |
| Linux | Ubuntu | jaunty | * |
| Linux | Ubuntu | karmic | * |
| Linux | Ubuntu | lucid | * |
| Linux | Ubuntu | maverick | * |
| Linux | Ubuntu | upstream | * |
| Linux-armadaxp | Ubuntu | upstream | * |
| Linux-backports-modules-2.6.24 | Ubuntu | hardy | * |
| Linux-backports-modules-2.6.28 | Ubuntu | jaunty | * |
| Linux-backports-modules-2.6.32 | Ubuntu | lucid | * |
| Linux-ec2 | Ubuntu | karmic | * |
| Linux-ec2 | Ubuntu | lucid | * |
| Linux-ec2 | Ubuntu | maverick | * |
| Linux-ec2 | Ubuntu | upstream | * |
| Linux-flo | Ubuntu | upstream | * |
| Linux-fsl-imx51 | Ubuntu | karmic | * |
| Linux-fsl-imx51 | Ubuntu | lucid | * |
| Linux-fsl-imx51 | Ubuntu | upstream | * |
| Linux-goldfish | Ubuntu | saucy | * |
| Linux-goldfish | Ubuntu | upstream | * |
| Linux-grouper | Ubuntu | saucy | * |
| Linux-grouper | Ubuntu | upstream | * |
| Linux-lts-backport-maverick | Ubuntu | lucid | * |
| Linux-lts-backport-maverick | Ubuntu | upstream | * |
| Linux-lts-backport-natty | Ubuntu | upstream | * |
| Linux-lts-backport-oneiric | Ubuntu | upstream | * |
| Linux-lts-quantal | Ubuntu | upstream | * |
| Linux-lts-raring | Ubuntu | upstream | * |
| Linux-lts-saucy | Ubuntu | upstream | * |
| Linux-lts-trusty | Ubuntu | upstream | * |
| Linux-lts-utopic | Ubuntu | upstream | * |
| Linux-lts-vivid | Ubuntu | upstream | * |
| Linux-maguro | Ubuntu | saucy | * |
| Linux-maguro | Ubuntu | upstream | * |
| Linux-mako | Ubuntu | saucy | * |
| Linux-mako | Ubuntu | upstream | * |
| Linux-manta | Ubuntu | saucy | * |
| Linux-manta | Ubuntu | upstream | * |
| Linux-mvl-dove | Ubuntu | karmic | * |
| Linux-mvl-dove | Ubuntu | lucid | * |
| Linux-mvl-dove | Ubuntu | maverick | * |
| Linux-mvl-dove | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | upstream | * |
| Linux-source-2.6.15 | Ubuntu | upstream | * |
| Linux-ti-omap4 | Ubuntu | maverick | * |
| Linux-ti-omap4 | Ubuntu | upstream | * |