kernel: denial of service with wedged processes
Published Jan 12, 2007
2.1
LOWCVSS 2.0
EPSS 0.48%
Description
Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.
Affected products
No data.
- 2.6.20.1
No data.
Red Hat Enterprise Linux 4
kernel-0:2.6.9-55.0.12.EL
Fixed · RHSA-2007:0939
Red Hat Enterprise Linux 5
kernel-0:2.6.18-53.1.14.el5
Fixed · RHSA-2008:0154
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-55.0.12.EL | Fixed | RHSA-2007:0939 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-53.1.14.el5 | Fixed | RHSA-2008:0154 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.48% (0.00476) | 38.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00461) | 36.27th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00060) | 27.52th | v3 (v2023.03.01) |
| Jun 6, 2024 | 0.06% (0.00060) | 25.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
No CWE recorded.
References (13)
- http://secunia.com/advisories/27436 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27747 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/29236 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm x_refsource_CONFIRM
- http://uwsg.iu.edu/hypermail/linux/kernel/0612.2/0980.html mailing-listx_refsource_MLISTExploit
- http://uwsg.iu.edu/hypermail/linux/kernel/0612.2/1021.html mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2007-0939.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2008-0154.html vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2006-6921 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=302921 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2006-6921
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10834 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2006-6921
Change history (0)
No recorded changes yet.