kernel: btrfs: prevent users from setting ACLs on files they do not own
Published Jun 16, 2010
4.6
MEDIUMCVSS 2.0
EPSS 0.47%
Description
The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.
Affected products
No data.
- ≤ 2.6.34
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:P/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.47% (0.00469) | 38.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.47% (0.00469) | 36.75th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00049) | 12.48th | 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) |
| Feb 13, 2023 | 0.95% (0.00950) | 31.86th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.03% (0.01034) | 40.96th | 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 (8)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba x_refsource_CONFIRM
- http://lkml.org/lkml/2010/5/17/544 mailing-listx_refsource_MLISTExploitPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/06/11/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/06/14/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2010-2071 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=603593 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-2071
- https://www.cve.org/CVERecord?id=CVE-2010-2071
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba | x_refsource_CONFIRM | |
| http://lkml.org/lkml/2010/5/17/544 | mailing-listx_refsource_MLISTExploitPatchThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2010/06/11/3 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2010/06/14/2 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2010-2071 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=603593 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-2071 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-2071 |
Change history (0)
No recorded changes yet.