Privilege escalation in Linux Kernel
CVE-2014-5207
fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.2 (Medium). Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.009 (57.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 14.04
Weakness classification (CWE)
References
- www.securityfocus.com/bid/69216 (VDB Entry, Third Party Advisory, vdb-entry)
- seclists.org/oss-sec/2014/q3/352 (mailing-list, Mailing List, Third Party Advisory)
- github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705 (Patch, Third Party Advisory)
- www.ubuntu.com/usn/USN-2318-1 (vendor-advisory, Third Party Advisory)
- osvdb.org/show/osvdb/110055 (vdb-entry, Broken Link)
- www.exploit-db.com/exploits/34923 (Exploit, VDB Entry, Third Party Advisory, exploit)
- git.kernel.org/
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- exchange.xforce.ibmcloud.com/vulnerabilities/95266 (VDB Entry, Third Party Advisory, vdb-entry)
- packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalat… (Exploit, VDB Entry, Third Party Advisory)