Unknown vulnerability in the Linux kernel before 2.4.23, on the AMD AMD64 and Intel EM64T architectures, associated with "setting up TSS li…

published 2005-01-20 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0810

cvss: 2.1; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

Unknown vulnerability in the Linux kernel before 2.4.23, on the AMD AMD64 and Intel EM64T architectures, associated with "setting up TSS limits," allows local users to cause a denial of service (crash) and possibly execute arbitrary code.

Patch / fix

distros 1 links 3

kernel RHEL 3 2.4.21-20.0.1.EL
kernel-smp RHEL 3 2.4.21-20.0.1.EL
kernel-BOOT RHEL 3 2.4.21-20.0.1.EL
kernel-source RHEL 3 2.4.21-20.0.1.EL
kernel-hugemem RHEL 3 2.4.21-20.0.1.EL
kernel-unsupported RHEL 3 2.4.21-20.0.1.EL
kernel-smp-unsupported RHEL 3 2.4.21-20.0.1.EL
kernel-hugemem-unsupported RHEL 3 2.4.21-20.0.1.EL

red hat advisories RHSA-2004:549

redhat.com/support/errata/RHSA-2004-549.html advisory
ciac.org/ciac/bulletins/p-047.shtml advisory
securityfocus.com/bid/11794 advisory

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-2004-0812 updated 2025-11-21

security flaw

Red Hat Desktop version 3 kernel 2.4.21-20.0.1.EL, kernel-smp 2.4.21-20.0.1.EL, kernel-BOOT 2.4.21-20.0.1.EL, kernel-source 2.4.21-20.0.1.EL, kernel-hugemem 2.4.21-20.0.1.EL, kernel-unsupported 2.4.21-20.0.1.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-20.0.1.EL, kernel-smp 2.4.21-20.0.1.EL, kernel-BOOT 2.4.21-20.0.1.EL, kernel-source 2.4.21-20.0.1.EL, kernel-hugemem 2.4.21-20.0.1.EL, kernel-unsupported 2.4.21-20.0.1.EL, +2 more Red Hat Enterprise Linux ES version 3 kernel 2.4.21-20.0.1.EL, kernel-smp 2.4.21-20.0.1.EL, kernel-BOOT 2.4.21-20.0.1.EL, kernel-source 2.4.21-20.0.1.EL, kernel-hugemem 2.4.21-20.0.1.EL, kernel-unsupported 2.4.21-20.0.1.EL, +2 more Red Hat Enterprise Linux WS version 3 kernel 2.4.21-20.0.1.EL, kernel-smp 2.4.21-20.0.1.EL, kernel-BOOT 2.4.21-20.0.1.EL, kernel-source 2.4.21-20.0.1.EL, kernel-hugemem 2.4.21-20.0.1.EL, kernel-unsupported 2.4.21-20.0.1.EL, +2 more
fixed: vendor fix RHSA-2004:549

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

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

Linux kernel rss critical rss

References

redhat.com /support/errata/RHSA-2004-549.html
vendor-advisory, patch
ciac.org /ciac/bulletins/p-047.shtml
third-party-advisory, government-resource, patch, vendor-advisory
securityfocus.com /bid/11794
vdb-entry, patch, vendor-advisory
secunia.com /advisories/13359
third-party-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/18346
vdb-entry
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11375
vdb-entry, signature
linux.bkbits.net /linux-2.6/cset%403fad673ber4GuU7iWppydzNIyLntEQ

Sources

CVE List CVE-2004-0812
NVD CVE-2004-0812

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.

Summary