kernel: btrfs: check for read permission on src file in the clone ioctl
Published Jun 7, 2010
2.1
LOWCVSS 2.0
EPSS 0.83%
Description
The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the btrfs functionality in the Linux kernel 2.6.29 through 2.6.32, and possibly other versions, does not ensure that a cloned file descriptor has been opened for reading, which allows local users to read sensitive information from a write-only file descriptor.
Affected products
No data.
- 2.6.29
- 2.6.29.1
- 2.6.29.2
- 2.6.29.3
- 2.6.29.4
- 2.6.29.5
- 2.6.29.6
- 2.6.30
- 2.6.30.1
- 2.6.30.2
- 2.6.30.3
- 2.6.30.4
- 2.6.30.5
- 2.6.30.6
- 2.6.30.7
- 2.6.30.8
- 2.6.30.9
- 2.6.30.10
- 2.6.31
- 2.6.31.1
- 2.6.31.2
- 2.6.31.3
- 2.6.31.4
- 2.6.31.5
- 2.6.31.6
- 2.6.31.7
- 2.6.31.8
- 2.6.31.9
- 2.6.31.10
- 2.6.31.11
- 2.6.31.12
- 2.6.31.13
- 2.6.32
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:P/I:N/A:N
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 1, 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 1, 2026 | 0.83% (0.00829) | 55.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.83% (0.00829) | 52.56th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00108) | 26.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00048) | 19.91th | v3 (v2023.03.01) |
| May 14, 2024 | 0.05% (0.00048) | 17.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00048) | 15.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01924) | 78.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.92% (0.01924) | 76.07th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.92% (0.01924) | 55.23th | v2 (v2022.01.01) |
References (9)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2010/05/18/10 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2010/05/18/2 mailing-listx_refsource_MLISTPatch
- http://www.openwall.com/lists/oss-security/2010/05/25/8 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2010-1636 Vendor Advisory
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585 x_refsource_MISCExploitPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=593226 x_refsource_CONFIRMExploitIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-1636
- https://www.cve.org/CVERecord?id=CVE-2010-1636
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=5dc6416414fb3ec6e2825fd4d20c8bf1d7fe0395 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2010/05/18/10 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2010/05/18/2 | mailing-listx_refsource_MLISTPatch | |
| http://www.openwall.com/lists/oss-security/2010/05/25/8 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2010-1636 | Vendor Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579585 | x_refsource_MISCExploitPatch | |
| https://bugzilla.redhat.com/show_bug.cgi?id=593226 | x_refsource_CONFIRMExploitIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-1636 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-1636 |
Change history (0)
No recorded changes yet.