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Link Following Affecting glib2 package, versions <0:2.36.3-5.23.amzn1

high

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.93% (83rd percentile)
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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-AMZN201803-GLIB2-5496814
  • published 4 May 2023
  • disclosed 11 Mar 2021
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Introduced: 11 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 Amazon-Linux:2018.03 glib2 to version 0:2.36.3-5.23.amzn1 or higher.
This issue was patched in ALAS-2023-1742.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2 package and not the glib2 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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.)

References