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Fencer Vulns
high 7.2

CVE-2005-1263 json

The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local…

published 2005-05-11 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-1266

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
1
Exploit-DB

Summary

The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local users to execute arbitrary code via an ELF binary that, in certain conditions involving the create_elf_tables function, causes a negative length argument to pass a signed integer comparison, leading to a buffer overflow.

Patch / fix

  • kernel RHEL 3 2.4.21-32.0.1.EL
  • kernel-smp RHEL 3 2.4.21-32.0.1.EL
  • kernel-BOOT RHEL 3 2.4.21-32.0.1.EL
  • kernel-source RHEL 3 2.4.21-32.0.1.EL
  • kernel-hugemem RHEL 3 2.4.21-32.0.1.EL
  • kernel-unsupported RHEL 3 2.4.21-32.0.1.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-32.0.1.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-32.0.1.EL

red hat advisories RHSA-2005:472

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-2005-1263 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-32.0.1.EL, kernel-smp 2.4.21-32.0.1.EL, kernel-BOOT 2.4.21-32.0.1.EL, kernel-source 2.4.21-32.0.1.EL, kernel-hugemem 2.4.21-32.0.1.EL, kernel-unsupported 2.4.21-32.0.1.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-32.0.1.EL, kernel-smp 2.4.21-32.0.1.EL, kernel-BOOT 2.4.21-32.0.1.EL, kernel-source 2.4.21-32.0.1.EL, kernel-hugemem 2.4.21-32.0.1.EL, kernel-unsupported 2.4.21-32.0.1.EL, +2 more
    fixed: vendor fix RHSA-2005:472
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2005:529
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-32.0.1.EL, kernel-smp 2.4.21-32.0.1.EL, kernel-BOOT 2.4.21-32.0.1.EL, kernel-source 2.4.21-32.0.1.EL, kernel-hugemem 2.4.21-32.0.1.EL, kernel-unsupported 2.4.21-32.0.1.EL, +2 more
    fixed: vendor fix RHSA-2005:472
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2005:529
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-32.0.1.EL, kernel-smp 2.4.21-32.0.1.EL, kernel-BOOT 2.4.21-32.0.1.EL, kernel-source 2.4.21-32.0.1.EL, kernel-hugemem 2.4.21-32.0.1.EL, kernel-unsupported 2.4.21-32.0.1.EL, +2 more
    fixed: vendor fix RHSA-2005:472
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2005:551

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-25647)
  2. Published

Exploit prediction

1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-25647 Linux Kernel 2.2.x/2.3.x/2.4.x/2.5.x/2.6.x - ELF Core Dump Local Buffer Overflow (PoC) dos, 2005-05-11

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/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.