Link Following Affecting glib package, versions <2.66.6-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.73% (73rd percentile)

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  • Snyk IDSNYK-ALPINE313-GLIB-1253160
  • published22 Apr 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 Alpine:3.13 glib to version 2.66.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib package and not the glib package as distributed by Alpine. See How to fix? for Alpine:3.13 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 Base Scores

version 3.1