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Fencer Vulns
low 2.1

CVE-2008-3528 json

The error-reporting functionality in (1) fs/ext2/dir.c, (2) fs/ext3/dir.c, and possibly (3) fs/ext4/dir.c in the Linux kernel 2.6.26.5 does…

published 2008-09-27 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3514

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

The error-reporting functionality in (1) fs/ext2/dir.c, (2) fs/ext3/dir.c, and possibly (3) fs/ext4/dir.c in the Linux kernel 2.6.26.5 does not limit the number of printk console messages that report directory corruption, which allows physically proximate attackers to cause a denial of service (temporary system hang) by mounting a filesystem that has corrupted dir->i_size and dir->i_blocks values and performing (a) read or (b) write operations. NOTE: there are limited scenarios in which this crosses privilege boundaries.

Patch / fix

  • kernel RHEL 5 2.6.18-128.1.6.el5
  • kernel-PAE RHEL 5 2.6.18-128.1.6.el5
  • kernel-xen RHEL 5 2.6.18-128.1.6.el5
  • kernel-kdump RHEL 5 2.6.18-128.1.6.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-128.1.6.el5
  • kernel RHEL 4 2.6.9-78.0.8.EL
  • kernel-smp RHEL 4 2.6.9-78.0.8.EL
  • kernel-xenU RHEL 4 2.6.9-78.0.8.EL

red hat advisories RHSA-2009:0326RHSA-2008:0972RHSA-2009:0009

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-2008-3528 updated cvss 2.1

Linux kernel ext[234] directory corruption denial of service

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-93.el5rt, kernel-rt-trace 2.6.24.7-93.el5rt, kernel-rt-vanilla 2.6.24.7-93.el5rt, kernel-rt-debuginfo-common 2.6.24.7-93.el5rt
    fixed: vendor fix RHSA-2009:0009
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-128.1.6.el5, kernel-PAE 2.6.18-128.1.6.el5, kernel-xen 2.6.18-128.1.6.el5, kernel-kdump 2.6.18-128.1.6.el5, kernel-debuginfo-common 2.6.18-128.1.6.el5
    fixed: vendor fix RHSA-2009:0326
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL
    fixed: vendor fix RHSA-2008:0972
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-128.1.6.el5, kernel-PAE 2.6.18-128.1.6.el5, kernel-xen 2.6.18-128.1.6.el5, kernel-kdump 2.6.18-128.1.6.el5, kernel-debuginfo-common 2.6.18-128.1.6.el5
    fixed: vendor fix RHSA-2009:0326
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-78.0.8.EL, kernel-smp 2.6.9-78.0.8.EL, kernel-xenU 2.6.9-78.0.8.EL, kernel-hugemem 2.6.9-78.0.8.EL, kernel-largesmp 2.6.9-78.0.8.EL
    fixed: vendor fix RHSA-2008:0972

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

0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • lkml.org http://lkml.org/lkml/2008/9/13/98 referenced PoC, tagged "exploit" by a source, unverified
  • lkml.org http://lkml.org/lkml/2008/9/13/99 referenced PoC, tagged "exploit" by a source, unverified

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

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
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.