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Fencer Vulns
medium 6.2

CVE-2004-1235 json

Race condition in the (1) load_elf_library and (2) binfmt_aout function calls for uselib in Linux kernel 2.4 through 2.429-rc2 and 2.6 thro…

published 2005-01-20 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1232

cvss
6.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
3
Exploit-DB

Summary

Race condition in the (1) load_elf_library and (2) binfmt_aout function calls for uselib in Linux kernel 2.4 through 2.429-rc2 and 2.6 through 2.6.10 allows local users to execute arbitrary code by manipulating the VMA descriptor.

Patch / fix

  • kernel RHEL 4 2.6.9-5.0.3.EL
  • kernel-smp RHEL 4 2.6.9-5.0.3.EL
  • kernel-hugemem RHEL 4 2.6.9-5.0.3.EL
  • kernel RHEL 3 2.4.21-27.0.2.EL
  • kernel-smp RHEL 3 2.4.21-27.0.2.EL
  • kernel-BOOT RHEL 3 2.4.21-27.0.2.EL
  • kernel-source RHEL 3 2.4.21-27.0.2.EL
  • kernel-hugemem RHEL 3 2.4.21-27.0.2.EL

red hat advisories RHSA-2005:092RHSA-2005:043

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-2004-1235 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-27.0.2.EL, kernel-smp 2.4.21-27.0.2.EL, kernel-BOOT 2.4.21-27.0.2.EL, kernel-source 2.4.21-27.0.2.EL, kernel-hugemem 2.4.21-27.0.2.EL, kernel-unsupported 2.4.21-27.0.2.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-27.0.2.EL, kernel-smp 2.4.21-27.0.2.EL, kernel-BOOT 2.4.21-27.0.2.EL, kernel-source 2.4.21-27.0.2.EL, kernel-hugemem 2.4.21-27.0.2.EL, kernel-unsupported 2.4.21-27.0.2.EL, +2 more
    fixed: vendor fix RHSA-2005:043
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-5.0.3.EL, kernel-smp 2.6.9-5.0.3.EL, kernel-hugemem 2.6.9-5.0.3.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-5.0.3.EL, kernel-smp 2.6.9-5.0.3.EL, kernel-hugemem 2.6.9-5.0.3.EL
    fixed: vendor fix RHSA-2005:092
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2005:016
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-27.0.2.EL, kernel-smp 2.4.21-27.0.2.EL, kernel-BOOT 2.4.21-27.0.2.EL, kernel-source 2.4.21-27.0.2.EL, kernel-hugemem 2.4.21-27.0.2.EL, kernel-unsupported 2.4.21-27.0.2.EL, +2 more
    fixed: vendor fix RHSA-2005:043
  • Red Hat Enterprise Linux ES version 4 kernel 2.6.9-5.0.3.EL, kernel-smp 2.6.9-5.0.3.EL, kernel-hugemem 2.6.9-5.0.3.EL
    fixed: vendor fix RHSA-2005:092
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2005:016
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-27.0.2.EL, kernel-smp 2.4.21-27.0.2.EL, kernel-BOOT 2.4.21-27.0.2.EL, kernel-source 2.4.21-27.0.2.EL, kernel-hugemem 2.4.21-27.0.2.EL, kernel-unsupported 2.4.21-27.0.2.EL, +2 more
    fixed: vendor fix RHSA-2005:043
  • Red Hat Enterprise Linux WS version 4 kernel 2.6.9-5.0.3.EL, kernel-smp 2.6.9-5.0.3.EL, kernel-hugemem 2.6.9-5.0.3.EL
    fixed: vendor fix RHSA-2005:092
show 1 more
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2005:017

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. First public exploit (EDB-744)
  2. Published

Exploit prediction

2.92% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-895 Linux Kernel 2.4.x/2.6.x - 'uselib()' Local Privilege Escalation (3) local, 2005-03-22
  • EDB-778 Linux Kernel 2.4 - 'uselib()' Local Privilege Escalation (2) local, 2005-01-27
  • EDB-744 Linux Kernel 2.4.29-rc2 - 'uselib()' Local Privilege Escalation (1) local, 2005-01-07
  • securityfocus.com http://www.securityfocus.com/bid/12190 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C

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.