CVE-2011-2686 : Detail

CVE-2011-2686

A02-Cryptographic Failures
0.5%V3
Network
2011-08-05
19h00 +00:00
2017-08-28
10h57 +00:00
CVE.org
NVD
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CVE Descriptions

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.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-310 Category : Cryptographic Issues
Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.

Metrics

Metrics Score Severity CVSS Vector Source
V2 5 AV:N/AC:L/Au:N/C:P/I:N/A:N nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Products Mentioned

Configuraton 0

Ruby-lang>>Ruby >> Version To (including) 1.8.7-334

Ruby-lang>>Ruby >> Version 1.8.7

Ruby-lang>>Ruby >> Version 1.8.7

Ruby-lang>>Ruby >> Version 1.8.7

Ruby-lang>>Ruby >> Version 1.8.7-160

    Ruby-lang>>Ruby >> Version 1.8.7-173

      Ruby-lang>>Ruby >> Version 1.8.7-248

        Ruby-lang>>Ruby >> Version 1.8.7-249

          Ruby-lang>>Ruby >> Version 1.8.7-299

            Ruby-lang>>Ruby >> Version 1.8.7-302

              Ruby-lang>>Ruby >> Version 1.8.7-330

                Ruby-lang>>Ruby >> Version 1.8.7-p21

                  References

                  http://www.openwall.com/lists/oss-security/2011/07/12/14
                  Tags : mailing-list, x_refsource_MLIST
                  http://www.openwall.com/lists/oss-security/2011/07/20/16
                  Tags : mailing-list, x_refsource_MLIST
                  http://www.openwall.com/lists/oss-security/2011/07/20/1
                  Tags : mailing-list, x_refsource_MLIST
                  http://www.openwall.com/lists/oss-security/2011/07/11/1
                  Tags : mailing-list, x_refsource_MLIST
                  http://www.securityfocus.com/bid/49015
                  Tags : vdb-entry, x_refsource_BID