UBUNTU-CVE-2014-5206
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UBUNTU-CVE-2014-5206
Published: 13 Aug 2014Last Modified: 22 Apr 2026
Upstream:
Aliases:
Summary:
Details: 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.
References: https://ubuntu.com/security/CVE-2014-5206, http://www.openwall.com/lists/oss-security/2014/08/13/4, https://ubuntu.com/security/notices/USN-2317-1, https://ubuntu.com/security/notices/USN-2318-1, https://www.cve.org/CVERecord?id=CVE-2014-5206
Affected packages
Package
Name: linux
Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -3.13.0-34.60
Affected versions
3.11.0-12.19
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
