CVE-2010-4258 in Kernel
Summary
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.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Reservation
11/16/2010
Disclosure
12/30/2010
Status
Confirmed
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 55886 | Linux Kernel do_exit access control | 264 | Proof-of-Concept | Official fix | CVE-2010-4258 |