CVE-2010-4258

UnknownEPSS 2.66%

Last modified

CVE-2010-4258 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.66% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.66%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel< 2.6.36.2
FedoraprojectFedora13
OpensuseOpensuse11.2
OpensuseOpensuse11.3
SuseLinux Enterprise Desktop10Sp3
SuseLinux Enterprise Desktop11Sp1
SuseLinux Enterprise Real Time Extension11Sp1
SuseLinux Enterprise Server9
SuseLinux Enterprise Server10Sp3
SuseLinux Enterprise Server11Sp1
SuseLinux Enterprise Software Development Kit10Sp3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2010-4258?
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.
How severe is CVE-2010-4258?
Severity scoring for CVE-2010-4258 is pending analysis. The EPSS model estimates a 2.66% probability of exploitation in the next 30 days.
How do I fix CVE-2010-4258?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-4258?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST