CVE-2011-2686

UnknownEPSS 2.58%

Last modified

CVE-2011-2686 is a vulnerability of currently unknown severity. Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.. EPSS estimates a 2.58% chance of exploitation in the next 30 days.

Description

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.

Metrics

EPSS Probability
2.58%

83.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
Ruby-LangRuby<= 1.8.7-334
Ruby-LangRuby1.8.7P22
Ruby-LangRuby1.8.7-160
Ruby-LangRuby1.8.7-173
Ruby-LangRuby1.8.7-248
Ruby-LangRuby1.8.7-249
Ruby-LangRuby1.8.7-299
Ruby-LangRuby1.8.7-302
Ruby-LangRuby1.8.7-330
Ruby-LangRuby1.8.7-p21

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-2686?
Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.
How severe is CVE-2011-2686?
Severity scoring for CVE-2011-2686 is pending analysis. The EPSS model estimates a 2.58% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2686?
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-2011-2686?

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

Scan your code now

Source: NVD / NIST