Link Following Affecting glib2.0 package, versions <2.64.6-1~ubuntu20.04.3


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.32% (87th percentile)

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  • Snyk IDSNYK-UBUNTU2004-GLIB20-1085495
  • published13 Mar 2021
  • disclosed11 Mar 2021

Introduced: 11 Mar 2021

CVE-2021-28153  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 glib2.0 to version 2.64.6-1~ubuntu20.04.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2.0 package and not the glib2.0 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 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.)

CVSS Scores

version 3.1