Race Condition Affecting systemd-sysv package, versions <0:219-42.el7_4.7


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.94% (84th percentile)

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  • Snyk IDSNYK-CENTOS7-SYSTEMDSYSV-2096307
  • published26 Jul 2021
  • disclosed9 May 2017

Introduced: 9 May 2017

CVE-2018-1049  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Centos:7 systemd-sysv to version 0:219-42.el7_4.7 or higher.

NVD Description

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

In systemd prior to 234 a race condition exists between .mount and .automount units such that automount requests from kernel may not be serviced by systemd resulting in kernel holding the mountpoint and any processes that try to use said mount will hang. A race condition like this may lead to denial of service, until mount points are unmounted.

CVSS Scores

version 3.1