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Fencer Vulns
low 2.1

CVE-2005-2973 json

The udp_v6_get_port function in udp.c in Linux 2.6 before 2.6.14-rc5, when running IPv6, allows local users to cause a denial of service (i…

published 2005-10-27 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2973

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
1
Exploit-DB

Summary

The udp_v6_get_port function in udp.c in Linux 2.6 before 2.6.14-rc5, when running IPv6, allows local users to cause a denial of service (infinite loop and crash).

Patch / fix

  • kernel RHEL 4 2.6.9-34.0.1.EL
  • kernel-smp RHEL 4 2.6.9-34.0.1.EL
  • kernel-hugemem RHEL 4 2.6.9-34.0.1.EL
  • kernel-largesmp RHEL 4 2.6.9-34.0.1.EL
  • kernel RHEL 3 2.4.21-37.0.1.EL
  • kernel-smp RHEL 3 2.4.21-37.0.1.EL
  • kernel-BOOT RHEL 3 2.4.21-37.0.1.EL
  • kernel-source RHEL 3 2.4.21-37.0.1.EL

red hat advisories RHSA-2006:0493RHSA-2006:0140

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-2005-2973 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-37.0.1.EL, kernel-smp 2.4.21-37.0.1.EL, kernel-BOOT 2.4.21-37.0.1.EL, kernel-source 2.4.21-37.0.1.EL, kernel-hugemem 2.4.21-37.0.1.EL, kernel-unsupported 2.4.21-37.0.1.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-37.0.1.EL, kernel-smp 2.4.21-37.0.1.EL, kernel-BOOT 2.4.21-37.0.1.EL, kernel-source 2.4.21-37.0.1.EL, kernel-hugemem 2.4.21-37.0.1.EL, kernel-unsupported 2.4.21-37.0.1.EL, +2 more
    fixed: vendor fix RHSA-2006:0140
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-34.0.1.EL, kernel-smp 2.6.9-34.0.1.EL, kernel-hugemem 2.6.9-34.0.1.EL, kernel-largesmp 2.6.9-34.0.1.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-34.0.1.EL, kernel-smp 2.6.9-34.0.1.EL, kernel-hugemem 2.6.9-34.0.1.EL, kernel-largesmp 2.6.9-34.0.1.EL
    fixed: vendor fix RHSA-2006:0493
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2006:0191
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-37.0.1.EL, kernel-smp 2.4.21-37.0.1.EL, kernel-BOOT 2.4.21-37.0.1.EL, kernel-source 2.4.21-37.0.1.EL, kernel-hugemem 2.4.21-37.0.1.EL, kernel-unsupported 2.4.21-37.0.1.EL, +2 more
    fixed: vendor fix RHSA-2006:0140
  • Red Hat Enterprise Linux ES version 4 kernel 2.6.9-34.0.1.EL, kernel-smp 2.6.9-34.0.1.EL, kernel-hugemem 2.6.9-34.0.1.EL, kernel-largesmp 2.6.9-34.0.1.EL
    fixed: vendor fix RHSA-2006:0493
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2006:0191
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-37.0.1.EL, kernel-smp 2.4.21-37.0.1.EL, kernel-BOOT 2.4.21-37.0.1.EL, kernel-source 2.4.21-37.0.1.EL, kernel-hugemem 2.4.21-37.0.1.EL, kernel-unsupported 2.4.21-37.0.1.EL, +2 more
    fixed: vendor fix RHSA-2006:0140
  • Red Hat Enterprise Linux WS version 4 kernel 2.6.9-34.0.1.EL, kernel-smp 2.6.9-34.0.1.EL, kernel-hugemem 2.6.9-34.0.1.EL, kernel-largesmp 2.6.9-34.0.1.EL
    fixed: vendor fix RHSA-2006:0493
show 1 more
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2006:0190

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. First public exploit (EDB-26382)
  2. Published

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-26382 Linux Kernel 2.6.x - IPv6 Local Denial of Service dos, 2005-10-20

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Technology feeds

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.