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CVE-2009-2847

UnknownEPSS 0.94%

Last modified

CVE-2009-2847 is a vulnerability of currently unknown severity. The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.

Metrics

EPSS Probability
0.94%

56.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
LinuxKernel2.6.24.7—
LinuxKernel2.6.25.15—
LinuxLinux Kernel<= 2.6.16.31-Rc5
LinuxLinux Kernel2.6—
LinuxLinux Kernel2.6.0—
LinuxLinux Kernel2.6.1—
LinuxLinux Kernel2.6.10—
LinuxLinux Kernel2.6.11—
LinuxLinux Kernel2.6.11.1—
LinuxLinux Kernel2.6.11.2—
LinuxLinux Kernel2.6.11.3—
LinuxLinux Kernel2.6.11.4—
LinuxLinux Kernel2.6.11.5—
LinuxLinux Kernel2.6.11.6—
LinuxLinux Kernel2.6.11.7—
LinuxLinux Kernel2.6.11.8—
LinuxLinux Kernel2.6.11.9—
LinuxLinux Kernel2.6.11.10—
LinuxLinux Kernel2.6.11.11—
LinuxLinux Kernel2.6.11.12—
LinuxLinux Kernel2.6.12—
LinuxLinux Kernel2.6.12.1—
LinuxLinux Kernel2.6.12.2—
LinuxLinux Kernel2.6.12.3—
LinuxLinux Kernel2.6.12.4—
LinuxLinux Kernel2.6.12.5—
LinuxLinux Kernel2.6.12.6—
LinuxLinux Kernel2.6.13—
LinuxLinux Kernel2.6.13.1—
LinuxLinux Kernel2.6.13.2—
LinuxLinux Kernel2.6.13.3—
LinuxLinux Kernel2.6.13.4—
LinuxLinux Kernel2.6.13.5—
LinuxLinux Kernel2.6.14—
LinuxLinux Kernel2.6.14.1—
LinuxLinux Kernel2.6.14.2—
LinuxLinux Kernel2.6.14.3—
LinuxLinux Kernel2.6.14.4—
LinuxLinux Kernel2.6.14.5—
LinuxLinux Kernel2.6.14.6—
LinuxLinux Kernel2.6.14.7—
LinuxLinux Kernel2.6.15—
LinuxLinux Kernel2.6.15.1—
LinuxLinux Kernel2.6.15.2—
LinuxLinux Kernel2.6.15.3—
LinuxLinux Kernel2.6.15.4—
LinuxLinux Kernel2.6.15.5—
LinuxLinux Kernel2.6.15.6—
LinuxLinux Kernel2.6.15.7—
LinuxLinux Kernel2.6.16—

Showing 50 of 75 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-2847?
The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.
How severe is CVE-2009-2847?
Severity scoring for CVE-2009-2847 is pending analysis. The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2847?
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-2009-2847?

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

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Source: NVD / NIST