{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2014-5206", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd", "refsource": "CONFIRM", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd" }, { "name": "USN-2318-1", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2318-1" }, { "name": "69214", "refsource": "BID", "url": "http://www.securityfocus.com/bid/69214" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1129662", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1129662" }, { "name": "https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd", "refsource": "CONFIRM", "url": "https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd" }, { "name": "[oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2014/08/13/4" }, { "name": "USN-2317-1", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2317-1" } ] } }