CVE-2014-5206

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.

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.037

Associated Vulnerability

Vulnerability	OS Platform
Linux hardware enablement kernel from Trusty (USN-2317-1) linux-image-3.13.0-34-generic_3.13.0-34.60~precise1_i386.deb	Linux
Linux hardware enablement kernel from Trusty (USN-2317-1) linux-image-3.13.0-34-generic_3.13.0-34.60~precise1_amd64.deb	Linux
Linux kernel (USN-2318-1) linux-image-3.13.0-34-generic_3.13.0-34.60_i386.deb	Linux
Linux kernel (USN-2318-1) linux-image-3.13.0-34-generic_3.13.0-34.60_amd64.deb	Linux
Linux kernel (USN-2318-1) linux-image-3.13.0-34-lowlatency_3.13.0-34.60_i386.deb	Linux
Linux kernel (USN-2318-1) linux-image-3.13.0-34-lowlatency_3.13.0-34.60_amd64.deb	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234