UpHeron
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Servers and applications

CVE-2011-4121

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.

Severity
Critical 9.8
Published
26 Nov 2019
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.9.3
Sources
NVD

Affected software

SoftwareAffected versions
RubyServers and applications · cpe:a:ruby-lang:ruby
  • From 1.8.7.334 before 1.9.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4121
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4121