5

CVE-2011-3009: ruby-lang ruby Cryptographic Issues

Modified
Published 05-08-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-3009 is a medium (CVSS 5.0) Cryptographic Issues vulnerability in ruby-lang ruby. EPSS estimates a 2.02% chance of exploitation in the next 30 days, higher than 81% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
2.02%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5
RHSA-2011:1581RHSA-2012:0070RHSA-2026:7305RHSA-2026:7307RHSA-2026:8838

Timeline

  1. 05-08-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Ruby before 1.8.6-p114 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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.02%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.02% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Ruby-lang1 product
  • ruby≤ 1.8.6 | 1.8.6:p110 | 1.8.6:p36

1 vendor · 1 product

References

6 links