| CVE-2010-4258 | Date: (C)2010-12-30 (M)2024-02-22 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V2 Severity: |
| CVSS Score : 6.2 |
| Exploit Score: 1.9 |
| Impact Score: 10.0 |
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| CVSS V2 Metrics: |
| Access Vector: LOCAL |
| Access Complexity: HIGH |
| Authentication: NONE |
| Confidentiality: COMPLETE |
| Integrity: COMPLETE |
| Availability: COMPLETE |
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