Skip to content
Fencer Vulns
high 7.8

CVE-2006-4623 json

The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.…

published 2006-09-11 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-4611

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.17.8 allows remote attackers to cause a denial of service (crash) via an SNDU length of 0 in a ULE packet.

Patch / fix

  • kernel RHEL 4 2.6.9-42.0.3.EL
  • kernel-smp RHEL 4 2.6.9-42.0.3.EL
  • kernel-hugemem RHEL 4 2.6.9-42.0.3.EL
  • kernel-largesmp RHEL 4 2.6.9-42.0.3.EL

red hat advisories RHSA-2006:0689

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-2006-4623 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-42.0.3.EL, kernel-smp 2.6.9-42.0.3.EL, kernel-hugemem 2.6.9-42.0.3.EL, kernel-largesmp 2.6.9-42.0.3.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-42.0.3.EL, kernel-smp 2.6.9-42.0.3.EL, kernel-hugemem 2.6.9-42.0.3.EL, kernel-largesmp 2.6.9-42.0.3.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-42.0.3.EL, kernel-smp 2.6.9-42.0.3.EL, kernel-hugemem 2.6.9-42.0.3.EL, kernel-largesmp 2.6.9-42.0.3.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-42.0.3.EL, kernel-smp 2.6.9-42.0.3.EL, kernel-hugemem 2.6.9-42.0.3.EL, kernel-largesmp 2.6.9-42.0.3.EL
    fixed: vendor fix RHSA-2006:0689

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

Exploit prediction

4.34% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

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.