Description
The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.
Published: 2014-08-18
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2014-5104 The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.
Ubuntu USN Ubuntu USN USN-2317-1 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-2318-1 Linux kernel vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T11:41:47.763Z

Reserved: 2014-08-13T00:00:00.000Z

Link: CVE-2014-5206

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2014-08-18T11:15:27.107

Modified: 2026-05-06T22:30:45.220

Link: CVE-2014-5206

cve-icon Redhat

Severity : Important

Publid Date: 2014-08-01T00:00:00Z

Links: CVE-2014-5206 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses