CVE-2014-7975

Description

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

Risk Information

Base Score

5.5

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.073

Associated Vulnerability

Vulnerability	OS Platform
Linux hardware enablement kernel from Trusty (USN-2419-1) linux-image-3.13.0-40-generic_3.13.0-40.69~precise1_i386.deb	Linux
Linux hardware enablement kernel from Trusty (USN-2419-1) linux-image-3.13.0-40-generic_3.13.0-40.69~precise1_amd64.deb	Linux
Linux kernel (USN-2420-1) linux-image-3.13.0-40-generic_3.13.0-40.69_i386.deb	Linux
Linux kernel (USN-2420-1) linux-image-3.13.0-40-generic_3.13.0-40.69_amd64.deb	Linux
Linux kernel (USN-2420-1) linux-image-3.13.0-40-lowlatency_3.13.0-40.69_i386.deb	Linux
Linux kernel (USN-2420-1) linux-image-3.13.0-40-lowlatency_3.13.0-40.69_amd64.deb	Linux
Dtrace-modules-3.8.13-68.el6uek update (ELSA-2015-3012) dtrace-modules-3.8.13-68.el6uek-0.4.3-4.el6.x86_64.rpm	Linux
Dtrace-modules-3.8.13-68.el7uek update (ELSA-2015-3012) dtrace-modules-3.8.13-68.el7uek-0.4.3-4.el7.x86_64.rpm	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