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CVE-2011-2495

UnknownEPSS 0.48%

Last modified

CVE-2011-2495 is a vulnerability of currently unknown severity. fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.

Metrics

EPSS Probability
0.48%

37.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel<= 2.6.39.3
LinuxLinux Kernel2.6.39
LinuxLinux Kernel2.6.39.1
LinuxLinux Kernel2.6.39.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2495?
fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.
How severe is CVE-2011-2495?
Severity scoring for CVE-2011-2495 is pending analysis. The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2495?
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.

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Source: NVD / NIST