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Fencer Vulns
medium 4.7

CVE-2008-2365 json

Race condition in the ptrace and utrace support in the Linux kernel 2.6.9 through 2.6.25, as used in Red Hat Enterprise Linux (RHEL) 4, all…

published 2008-06-30 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-2361

cvss
4.7
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
2
Exploit-DB

Summary

Race condition in the ptrace and utrace support in the Linux kernel 2.6.9 through 2.6.25, as used in Red Hat Enterprise Linux (RHEL) 4, allows local users to cause a denial of service (oops) via a long series of PTRACE_ATTACH ptrace calls to another user's process that trigger a conflict between utrace_detach and report_quiescent, related to "late ptrace_may_attach() check" and "race around &dead_engine_ops setting," a different vulnerability than CVE-2007-0771 and CVE-2008-1514. NOTE: this issue might only affect kernel versions before 2.6.16.x.

Patch / fix

  • kernel RHEL 4 2.6.9-67.0.20.EL
  • kernel-smp RHEL 4 2.6.9-67.0.20.EL
  • kernel-xenU RHEL 4 2.6.9-67.0.20.EL
  • kernel-hugemem RHEL 4 2.6.9-67.0.20.EL
  • kernel-largesmp RHEL 4 2.6.9-67.0.20.EL
  • kernel RHEL 5 2.6.18-92.el5
  • kernel-PAE RHEL 5 2.6.18-92.el5
  • kernel-xen RHEL 5 2.6.18-92.el5

red hat advisories RHSA-2008:0508RHBA-2008:0314

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-2008-2365 updated

kernel: ptrace: Crash on PTRACE_{ATTACH,DETACH} race

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-92.el5, kernel-PAE 2.6.18-92.el5, kernel-xen 2.6.18-92.el5, kernel-kdump 2.6.18-92.el5, kernel-debuginfo-common 2.6.18-92.el5
    fixed: vendor fix RHBA-2008:0314
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL
    fixed: vendor fix RHSA-2008:0508
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-92.el5, kernel-PAE 2.6.18-92.el5, kernel-xen 2.6.18-92.el5, kernel-kdump 2.6.18-92.el5, kernel-debuginfo-common 2.6.18-92.el5
    fixed: vendor fix RHBA-2008:0314
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-67.0.20.EL, kernel-smp 2.6.9-67.0.20.EL, kernel-xenU 2.6.9-67.0.20.EL, kernel-hugemem 2.6.9-67.0.20.EL, kernel-largesmp 2.6.9-67.0.20.EL
    fixed: vendor fix RHSA-2008:0508

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-31966)
  2. Published

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

  • EDB-31966 Linux Kernel 2.6.9 < 2.6.25 (RHEL 4) - utrace and ptrace Local Denial of Service (2) dos, 2008-06-25
  • EDB-31965 Linux Kernel 2.6.9 < 2.6.25 (RHEL 4) - utrace and ptrace Local Denial of Service (1) dos, 2008-06-25

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.