CVE-2010-4258
Medium
Description
The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.
SeverityMedium
CVSS6.2
Exploit probability—
Product
Linux Kernel
PublishedDec 30, 2010
First seenDec 30, 2010
How to fix
Update
- linux linux_kernel2.6.36.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 2.6.36.2 | 2.6.36.2 |
| fedoraproject fedora | 13 | — |
| opensuse opensuse | 11.2, 11.3 | — |
| suse linux_enterprise_desktop | 10, 11 | — |
| suse linux_enterprise_real_time_extension | 11 | — |
| suse linux_enterprise_server | 9, 10, 11 | — |
| suse linux_enterprise_software_development_kit | 10 | — |
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