The pipe_fcntl function in fs/pipe.c in the Linux kernel before 2.6.37 does not properly determine whether a file is a named pipe, which allows local users to cause a denial of service via an F_SETPIPE_SZ fcntl call
Published Jan 25, 2011
2.1
LOWCVSS 2.0
EPSS 0.36%
Description
The pipe_fcntl function in fs/pipe.c in the Linux kernel before 2.6.37 does not properly determine whether a file is a named pipe, which allows local users to cause a denial of service via an F_SETPIPE_SZ fcntl call.
Affected products
No data.
- < 2.6.37
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG as they did not backport the upstream commit 35f3d14d that introduced this issue.
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 2, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.36% (0.00363) | 27.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00363) | 27.97th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00058) | 15.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (7)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c66fb347946ebdd5b10908866ecc9fa05ee2cf3d x_refsource_CONFIRM
- http://openwall.com/lists/oss-security/2010/11/30/6 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://openwall.com/lists/oss-security/2010/11/30/9 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 x_refsource_CONFIRMBroken Link
- https://access.redhat.com/security/cve/CVE-2010-4256 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2010-4256
- https://www.cve.org/CVERecord?id=CVE-2010-4256
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c66fb347946ebdd5b10908866ecc9fa05ee2cf3d | x_refsource_CONFIRM | |
| http://openwall.com/lists/oss-security/2010/11/30/6 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://openwall.com/lists/oss-security/2010/11/30/9 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 | x_refsource_CONFIRMBroken Link | |
| https://access.redhat.com/security/cve/CVE-2010-4256 | Vendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-4256 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-4256 |
Change history (0)
No recorded changes yet.