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CVE-2011-4858

UnknownEPSS 80.32%

Last modified

CVE-2011-4858 is a vulnerability of currently unknown severity. Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.. EPSS estimates a 80.32% chance of exploitation in the next 30 days.

Description

Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

Metrics

EPSS Probability
80.32%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheTomcat5.5.35
ApacheTomcat6.0.0
ApacheTomcat6.0.1
ApacheTomcat6.0.2
ApacheTomcat6.0.3
ApacheTomcat6.0.4
ApacheTomcat6.0.5
ApacheTomcat6.0.6
ApacheTomcat6.0.7
ApacheTomcat6.0.8
ApacheTomcat6.0.9
ApacheTomcat6.0.10
ApacheTomcat6.0.11
ApacheTomcat6.0.12
ApacheTomcat6.0.13
ApacheTomcat6.0.14
ApacheTomcat6.0.15
ApacheTomcat6.0.16
ApacheTomcat6.0.17
ApacheTomcat6.0.18
ApacheTomcat6.0.19
ApacheTomcat6.0.20
ApacheTomcat6.0.21
ApacheTomcat6.0.22
ApacheTomcat6.0.23
ApacheTomcat6.0.24
ApacheTomcat6.0.25
ApacheTomcat6.0.26
ApacheTomcat6.0.27
ApacheTomcat6.0.28
ApacheTomcat6.0.29
ApacheTomcat6.0.30
ApacheTomcat6.0.31
ApacheTomcat6.0.32
ApacheTomcat6.0.33
ApacheTomcat6.0.34
ApacheTomcat7.0.0
ApacheTomcat7.0.1
ApacheTomcat7.0.2
ApacheTomcat7.0.3
ApacheTomcat7.0.4
ApacheTomcat7.0.5
ApacheTomcat7.0.6
ApacheTomcat7.0.7
ApacheTomcat7.0.8
ApacheTomcat7.0.9
ApacheTomcat7.0.10
ApacheTomcat7.0.11
ApacheTomcat7.0.12
ApacheTomcat7.0.13

Showing 50 of 59 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4858?
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
How severe is CVE-2011-4858?
Severity scoring for CVE-2011-4858 is pending analysis. The EPSS model estimates a 80.32% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4858?
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.

How Strix Helps

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Source: NVD / NIST