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Fencer Vulns
high 7.5

CVE-2005-2801 json

xattr.c in the ext2 and ext3 file system code for Linux kernel 2.6 does not properly compare the name_index fields when sharing xattr block…

published 2005-09-06 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2802

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

xattr.c in the ext2 and ext3 file system code for Linux kernel 2.6 does not properly compare the name_index fields when sharing xattr blocks, which could prevent default ACLs from being applied.

Patch / fix

  • kernel RHEL 3 2.4.21-40.EL
  • kernel-smp RHEL 3 2.4.21-40.EL
  • kernel-BOOT RHEL 3 2.4.21-40.EL
  • kernel-source RHEL 3 2.4.21-40.EL
  • kernel-hugemem RHEL 3 2.4.21-40.EL
  • kernel-unsupported RHEL 3 2.4.21-40.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-40.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-40.EL

red hat advisories RHSA-2006:0144RHSA-2005:514

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-2005-2801 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-40.EL, kernel-smp 2.4.21-40.EL, kernel-BOOT 2.4.21-40.EL, kernel-source 2.4.21-40.EL, kernel-hugemem 2.4.21-40.EL, kernel-unsupported 2.4.21-40.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-40.EL, kernel-smp 2.4.21-40.EL, kernel-BOOT 2.4.21-40.EL, kernel-source 2.4.21-40.EL, kernel-hugemem 2.4.21-40.EL, kernel-unsupported 2.4.21-40.EL, +2 more
    fixed: vendor fix RHSA-2006:0144
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-22.EL, kernel-smp 2.6.9-22.EL, kernel-hugemem 2.6.9-22.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-22.EL, kernel-smp 2.6.9-22.EL, kernel-hugemem 2.6.9-22.EL
    fixed: vendor fix RHSA-2005:514
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-40.EL, kernel-smp 2.4.21-40.EL, kernel-BOOT 2.4.21-40.EL, kernel-source 2.4.21-40.EL, kernel-hugemem 2.4.21-40.EL, kernel-unsupported 2.4.21-40.EL, +2 more
    fixed: vendor fix RHSA-2006:0144
  • Red Hat Enterprise Linux ES version 4 kernel 2.6.9-22.EL, kernel-smp 2.6.9-22.EL, kernel-hugemem 2.6.9-22.EL
    fixed: vendor fix RHSA-2005:514
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-40.EL, kernel-smp 2.4.21-40.EL, kernel-BOOT 2.4.21-40.EL, kernel-source 2.4.21-40.EL, kernel-hugemem 2.4.21-40.EL, kernel-unsupported 2.4.21-40.EL, +2 more
    fixed: vendor fix RHSA-2006:0144
  • Red Hat Enterprise Linux WS version 4 kernel 2.6.9-22.EL, kernel-smp 2.6.9-22.EL, kernel-hugemem 2.6.9-22.EL
    fixed: vendor fix RHSA-2005:514

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

3.37% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • acl.bestbits.at http://acl.bestbits.at/pipermail/acl-devel/2005-February/001848.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
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.