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Link Following Affecting glib2 package, versions <0:2.56.4-156.el8

0.0
medium

Snyk CVSS

    Attack Complexity Low
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NVD
5.3 medium
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SUSE
3.7 low
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Red Hat
5.3 medium

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  • Snyk ID SNYK-CENTOS8-GLIB2-2146655
  • published 26 Jul 2021
  • disclosed 10 Mar 2021
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Introduced: 10 Mar 2021

CVE-2021-28153 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

Upgrade Centos:8 glib2 to version 0:2.56.4-156.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2 package and not the glib2 package as distributed by Centos:8. See How to fix? for Centos:8 relevant fixed versions and status.

An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also creates the target of the symlink as an empty file, which could conceivably have security relevance if the symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents of that file correctly remain unchanged.)