CVE-2011-4121

Description

The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of '1' to be used for private RSA key generation. A remote attacker could use this flaw to bypass or corrupt integrity of services, depending on strong private RSA keys generation mechanism.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory openwall.com Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory debian.org
Affected: OpenSSL OpenSSL extension of Ruby (Git trunk)
Published at:
Updated at:

References

Link Tags
https://security-tracker.debian.org/tracker/CVE-2011-4121 third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4121 issue tracking third party advisory
https://access.redhat.com/security/cve/cve-2011-4121 third party advisory
http://www.openwall.com/lists/oss-security/2013/07/01/1 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2011-4121?
CVE-2011-4121 has been scored as a critical severity vulnerability.
How to fix CVE-2011-4121?
To fix CVE-2011-4121, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4121 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-4121 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2011-4121?
CVE-2011-4121 affects OpenSSL OpenSSL extension of Ruby (Git trunk).
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