kernel: mount flags handling during remount
Published Aug 18, 2014
6.2
MEDIUMCVSS 2.0
EPSS 0.88%
Description
fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.
Affected products
No data.
Configuration 1
- ≤ 3.16.1
Configuration 2
- 12.04
- 14.04
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise MRG 2
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of kernel as shipped with Red Hat Enterprise Linux 5, 6, 7, and Red Hat Enterprise Linux MRG 2.
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:H/Au:N/C:C/I:C/A:C
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 | 0.88% (0.00881) | 57.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.89% (0.00888) | 54.43th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00228) | 43.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00063) | 28.92th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.06% (0.00063) | 25.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.53% (0.03534) | 84.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.53% (0.03534) | 83.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.53% (0.03534) | 66.49th | v2 (v2022.01.01) |
References (15)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9566d6742852c527bf5af38af5cbb878dad75705 x_refsource_CONFIRM
- http://osvdb.org/show/osvdb/110055 vdb-entryx_refsource_OSVDBBroken Link
- http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://seclists.org/oss-sec/2014/q3/352 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.exploit-db.com/exploits/34923 exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2014/08/13/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/69216 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2317-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2318-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-5207 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1129662 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95266 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-5207
- https://www.cve.org/CVERecord?id=CVE-2014-5207
Change history (0)
No recorded changes yet.