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Fencer Vulns
medium 5.0

CVE-2006-1931 json

The HTTP/XMLRPC server in Ruby before 1.8.2 uses blocking sockets, which allows attackers to cause a denial of service (blocked connections…

published 2006-04-20 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-1931

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.4%
EPSS 10.4% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

The HTTP/XMLRPC server in Ruby before 1.8.2 uses blocking sockets, which allows attackers to cause a denial of service (blocked connections) via a large amount of data.

Patch / fix

  • ruby RHEL 4 1.8.1-7.EL4.3
  • irb RHEL 4 1.8.1-7.EL4.3
  • ruby-libs RHEL 4 1.8.1-7.EL4.3
  • ruby-mode RHEL 4 1.8.1-7.EL4.3
  • ruby-tcltk RHEL 4 1.8.1-7.EL4.3

red hat advisories RHSA-2006:0427

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2006-1931 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 irb 1.8.1-7.EL4.3, ruby 1.8.1-7.EL4.3, ruby-libs 1.8.1-7.EL4.3, ruby-mode 1.8.1-7.EL4.3, ruby-tcltk 1.8.1-7.EL4.3 Red Hat Enterprise Linux Desktop version 4 irb 1.8.1-7.EL4.3, ruby 1.8.1-7.EL4.3, ruby-libs 1.8.1-7.EL4.3, ruby-mode 1.8.1-7.EL4.3, ruby-tcltk 1.8.1-7.EL4.3 Red Hat Enterprise Linux ES version 4 irb 1.8.1-7.EL4.3, ruby 1.8.1-7.EL4.3, ruby-libs 1.8.1-7.EL4.3, ruby-mode 1.8.1-7.EL4.3, ruby-tcltk 1.8.1-7.EL4.3 Red Hat Enterprise Linux WS version 4 irb 1.8.1-7.EL4.3, ruby 1.8.1-7.EL4.3, ruby-libs 1.8.1-7.EL4.3, ruby-mode 1.8.1-7.EL4.3, ruby-tcltk 1.8.1-7.EL4.3
    fixed: vendor fix RHSA-2006:0427

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-27723)

Exploit prediction

10.43% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-27723 Yukihiro Matsumoto Ruby 1.x - XMLRPC Server Denial of Service dos, 2006-04-21

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.