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CVE-2011-4086

UnknownEPSS 0.39%

Last modified

CVE-2011-4086 is a vulnerability of currently unknown severity. The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

Metrics

EPSS Probability
0.39%

30.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel<= 3.3—
LinuxLinux Kernel3.0Rc1
LinuxLinux Kernel3.0.1—
LinuxLinux Kernel3.0.2—
LinuxLinux Kernel3.0.3—
LinuxLinux Kernel3.0.4—
LinuxLinux Kernel3.0.5—
LinuxLinux Kernel3.0.6—
LinuxLinux Kernel3.0.7—
LinuxLinux Kernel3.0.8—
LinuxLinux Kernel3.0.9—
LinuxLinux Kernel3.0.10—
LinuxLinux Kernel3.0.11—
LinuxLinux Kernel3.0.12—
LinuxLinux Kernel3.0.13—
LinuxLinux Kernel3.0.14—
LinuxLinux Kernel3.0.15—
LinuxLinux Kernel3.0.16—
LinuxLinux Kernel3.0.17—
LinuxLinux Kernel3.0.18—
LinuxLinux Kernel3.0.19—
LinuxLinux Kernel3.0.20—
LinuxLinux Kernel3.0.21—
LinuxLinux Kernel3.0.22—
LinuxLinux Kernel3.0.23—
LinuxLinux Kernel3.0.24—
LinuxLinux Kernel3.0.25—
LinuxLinux Kernel3.0.26—
LinuxLinux Kernel3.0.27—
LinuxLinux Kernel3.0.28—
LinuxLinux Kernel3.0.29—
LinuxLinux Kernel3.0.30—
LinuxLinux Kernel3.0.31—
LinuxLinux Kernel3.0.32—
LinuxLinux Kernel3.0.33—
LinuxLinux Kernel3.0.34—
LinuxLinux Kernel3.1—
LinuxLinux Kernel3.1.1—
LinuxLinux Kernel3.1.2—
LinuxLinux Kernel3.1.3—
LinuxLinux Kernel3.1.4—
LinuxLinux Kernel3.1.5—
LinuxLinux Kernel3.1.6—
LinuxLinux Kernel3.1.7—
LinuxLinux Kernel3.1.8—
LinuxLinux Kernel3.1.9—
LinuxLinux Kernel3.1.10—
LinuxLinux Kernel3.2—
LinuxLinux Kernel3.2.1—
LinuxLinux Kernel3.2.2—

Showing 50 of 68 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4086?
The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.
How severe is CVE-2011-4086?
Severity scoring for CVE-2011-4086 is pending analysis. The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4086?
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-2011-4086?

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

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Source: NVD / NIST