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Incorrect Check of Function Return Value Affecting systemd-libs package, versions <0:219-19.el7

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.05% (19th percentile)
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NVD
5.5 medium
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Red Hat
6.8 medium

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  • Snyk ID SNYK-CENTOS7-SYSTEMDLIBS-2027952
  • published 26 Jul 2021
  • disclosed 28 Sep 2016
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Introduced: 28 Sep 2016

CVE-2016-7796 Open this link in a new tab
CWE-253 Open this link in a new tab

How to fix?

Upgrade Centos:7 systemd-libs to version 0:219-19.el7 or higher.

NVD Description

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

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.