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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2014-7824 | 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. |
Ubuntu USN |
USN-2415-1 | Linux kernel vulnerability |
Ubuntu USN |
USN-2416-1 | Linux kernel (EC2) vulnerabilities |
Ubuntu USN |
USN-2417-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2418-1 | Linux kernel (OMAP4) vulnerabilities |
Ubuntu USN |
USN-2419-1 | Linux kernel (Trusty HWE) vulnerabilities |
Ubuntu USN |
USN-2420-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2421-1 | Linux kernel vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T13:03:27.690Z
Reserved: 2014-10-08T00:00:00
Link: CVE-2014-7975
No data.
Status : Deferred
Published: 2014-10-13T10:55:09.263
Modified: 2025-04-12T10:46:40.837
Link: CVE-2014-7975
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN