CVE-2014-5207
7.1 High
AI Score
Confidence
High
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
25.9%
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.
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9566d6742852c527bf5af38af5cbb878dad75705
osvdb.org/show/osvdb/110055
packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html
seclists.org/oss-sec/2014/q3/352
www.exploit-db.com/exploits/34923
www.openwall.com/lists/oss-security/2014/08/13/4
www.securityfocus.com/bid/69216
www.ubuntu.com/usn/USN-2317-1
www.ubuntu.com/usn/USN-2318-1
bugzilla.redhat.com/show_bug.cgi?id=1129662
exchange.xforce.ibmcloud.com/vulnerabilities/95266
github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705
Related
7.1 High
AI Score
Confidence
High
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
25.9%