Link Following Affecting kernel package, versions <0:3.10.0-123.13.1.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNEL-2040313
  • published26 Jul 2021
  • disclosed20 Jul 2014

Introduced: 20 Jul 2014

CVE-2014-5045  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Centos:7 kernel to version 0:3.10.0-123.13.1.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

CVSS Scores

version 3.1