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CVE-2014-7975
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb…
Medium5.5EPSS 0.46%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (20)
- USN-2418-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 61145 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- linux-kernel-cve20147975-dos(96994) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- USN-2416-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2417-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2415-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2419-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1031180 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 60174 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-2421-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2420-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2017:2077 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:1842 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 62633 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20141008 CVE-2014-7975: 0-day umount denial of service (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 62634 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [stable] 20141008 [PATCH] fs: Add a missing permission check to do_umount (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 70314 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1151108 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2014-7975)Record last updated .