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Fencer Vulns
low 2.1

CVE-2004-0554 json

Linux kernel 2.4.x and 2.6.x for x86 allows local users to cause a denial of service (system crash), possibly via an infinite loop that tri…

published 2004-06-15 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0553

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
1
Exploit-DB

Summary

Linux kernel 2.4.x and 2.6.x for x86 allows local users to cause a denial of service (system crash), possibly via an infinite loop that triggers a signal handler with a certain sequence of fsave and frstor instructions, as originally demonstrated using a "crash.c" program.

Patch / fix

  • kernel RHEL 3 2.4.21-15.0.2.EL
  • kernel-smp RHEL 3 2.4.21-15.0.2.EL
  • kernel-BOOT RHEL 3 2.4.21-15.0.2.EL
  • kernel-source RHEL 3 2.4.21-15.0.2.EL
  • kernel-hugemem RHEL 3 2.4.21-15.0.2.EL
  • kernel-unsupported RHEL 3 2.4.21-15.0.2.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-15.0.2.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-15.0.2.EL

red hat advisories RHSA-2004:255

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-2004-0554 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-15.0.2.EL, kernel-smp 2.4.21-15.0.2.EL, kernel-BOOT 2.4.21-15.0.2.EL, kernel-source 2.4.21-15.0.2.EL, kernel-hugemem 2.4.21-15.0.2.EL, kernel-unsupported 2.4.21-15.0.2.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-15.0.2.EL, kernel-smp 2.4.21-15.0.2.EL, kernel-BOOT 2.4.21-15.0.2.EL, kernel-source 2.4.21-15.0.2.EL, kernel-hugemem 2.4.21-15.0.2.EL, kernel-unsupported 2.4.21-15.0.2.EL, +2 more
    fixed: vendor fix RHSA-2004:255
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2004:260
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-15.0.2.EL, kernel-smp 2.4.21-15.0.2.EL, kernel-BOOT 2.4.21-15.0.2.EL, kernel-source 2.4.21-15.0.2.EL, kernel-hugemem 2.4.21-15.0.2.EL, kernel-unsupported 2.4.21-15.0.2.EL, +2 more
    fixed: vendor fix RHSA-2004:255
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2004:260
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-15.0.2.EL, kernel-smp 2.4.21-15.0.2.EL, kernel-BOOT 2.4.21-15.0.2.EL, kernel-source 2.4.21-15.0.2.EL, kernel-hugemem 2.4.21-15.0.2.EL, kernel-unsupported 2.4.21-15.0.2.EL, +2 more
    fixed: vendor fix RHSA-2004:255

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-306)

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-306 Linux Kernel 2.4.x/2.6.x - Assembler Inline Function Local Denial of Service dos, 2004-06-25

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.