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Fencer Vulns
medium 5.0

CVE-2004-0177 json

The ext3 code in Linux 2.4.x before 2.4.26 does not properly initialize journal descriptor blocks, which causes an information leak in whic…

published 2004-04-16 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0177

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

The ext3 code in Linux 2.4.x before 2.4.26 does not properly initialize journal descriptor blocks, which causes an information leak in which in-memory data is written to the device for the ext3 file system, which allows privileged users to obtain portions of kernel memory by reading the raw device.

Patch / fix

  • kernel RHEL 3 2.4.21-27.0.4.EL
  • kernel-smp RHEL 3 2.4.21-27.0.4.EL
  • kernel-BOOT RHEL 3 2.4.21-27.0.4.EL
  • kernel-source RHEL 3 2.4.21-27.0.4.EL
  • kernel-hugemem RHEL 3 2.4.21-27.0.4.EL
  • kernel-unsupported RHEL 3 2.4.21-27.0.4.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-27.0.4.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-27.0.4.EL

red hat advisories RHSA-2005:293

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-2004-0177 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-27.0.4.EL, kernel-smp 2.4.21-27.0.4.EL, kernel-BOOT 2.4.21-27.0.4.EL, kernel-source 2.4.21-27.0.4.EL, kernel-hugemem 2.4.21-27.0.4.EL, kernel-unsupported 2.4.21-27.0.4.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-27.0.4.EL, kernel-smp 2.4.21-27.0.4.EL, kernel-BOOT 2.4.21-27.0.4.EL, kernel-source 2.4.21-27.0.4.EL, kernel-hugemem 2.4.21-27.0.4.EL, kernel-unsupported 2.4.21-27.0.4.EL, +2 more
    fixed: vendor fix RHSA-2005:293
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2004:505
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-27.0.4.EL, kernel-smp 2.4.21-27.0.4.EL, kernel-BOOT 2.4.21-27.0.4.EL, kernel-source 2.4.21-27.0.4.EL, kernel-hugemem 2.4.21-27.0.4.EL, kernel-unsupported 2.4.21-27.0.4.EL, +2 more
    fixed: vendor fix RHSA-2005:293
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2004:505
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-27.0.4.EL, kernel-smp 2.4.21-27.0.4.EL, kernel-BOOT 2.4.21-27.0.4.EL, kernel-source 2.4.21-27.0.4.EL, kernel-hugemem 2.4.21-27.0.4.EL, kernel-unsupported 2.4.21-27.0.4.EL, +2 more
    fixed: vendor fix RHSA-2005:293
  • Red Hat Linux 9
    fixed: vendor fix RHSA-2004:166
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2004:504

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

2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

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.