kernel: ecryptfs: mount source TOCTOU race
Published Oct 3, 2012
3.3
LOWCVSS 2.0
EPSS 0.36%
Description
Race condition in the ecryptfs_mount function in fs/ecryptfs/main.c in the eCryptfs subsystem in the Linux kernel before 3.1 allows local users to bypass intended file permissions via a mount.ecryptfs_private mount with a mismatched uid.
Affected products
No data.
- ≤ 3.0.44
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 3.0.19
- 3.0.20
- 3.0.21
- 3.0.22
- 3.0.23
- 3.0.24
- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
- 3.0.30
- 3.0.31
- 3.0.32
- 3.0.33
- 3.0.34
- 3.0.35
- 3.0.36
- 3.0.37
- 3.0.38
- 3.0.39
- 3.0.40
- 3.0.41
- 3.0.42
- 3.0.43
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-274.7.1.el5
Fixed · RHSA-2011:1386
Red Hat Enterprise Linux 6
kernel-0:2.6.32-131.17.1.el6
Fixed · RHSA-2011:1350
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-274.7.1.el5 | Fixed | RHSA-2011:1386 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-131.17.1.el6 | Fixed | RHSA-2011:1350 |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
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:M/Au:N/C:P/I:P/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 | 0.36% (0.00358) | 27.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00358) | 27.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00031) | 5.67th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (9)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=764355487ea220fdc2faf128d577d7f679b91f97 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html vendor-advisoryx_refsource_SUSE
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 x_refsource_CONFIRM
- http://www.ubuntu.com/usn/USN-1188-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2011-1833 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=731172 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97 x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2011-1833
- https://www.cve.org/CVERecord?id=CVE-2011-1833
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=764355487ea220fdc2faf128d577d7f679b91f97 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html | vendor-advisoryx_refsource_SUSE | |
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 | x_refsource_CONFIRM | |
| http://www.ubuntu.com/usn/USN-1188-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2011-1833 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=731172 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97 | x_refsource_CONFIRMExploitPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1833 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-1833 |
Change history (0)
No recorded changes yet.