CVE-2011-4121
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I. Basic Information for CVE-2011-4121
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Ruby OpenSSL extension 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ruby是松本行弘软件开发者的一种跨平台、面向对象的动态类型编程语言。OpenSSL extension是使用在其中的一个OpenSSL安全扩展程序。 Ruby 2011-09-01版本至2011-11-03版本中的OpenSSL extension存在加密问题漏洞。攻击者可借助特制请求利用该漏洞绕过安全限制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OpenSSL | OpenSSL extension of Ruby (Git trunk) | versions after 2011-09-01 up to 2011-11-03 | - |
II. Public POCs for CVE-2011-4121
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4121x_refsource_MISC
- https://access.redhat.com/security/cve/cve-2011-4121x_refsource_MISC
- https://security-tracker.debian.org/tracker/CVE-2011-4121x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2013/07/01/1x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2011-4121
IV. Related Vulnerabilities
Same vendor: OpenSSL
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Incorrect Failure Handling in RSA KEM RSASVE Encapsulation - CVE-2026-31789
Heap Buffer Overflow in Hexadecimal Conversion - CVE-2026-28390
Possible NULL Dereference When Processing CMS KeyTransportRe - CVE-2026-28389
Possible NULL Dereference When Processing CMS KeyAgreeRecipi - CVE-2026-28388
NULL Pointer Dereference When Processing a Delta CRL
V. Comments for CVE-2011-4121
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