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

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    1.32% (87th percentile)

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  • Snyk ID SNYK-RHEL8-GLIB2FAM-4189307
  • 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 RHEL:8 glib2-fam to version 0:2.56.4-156.el8 or higher.
This issue was patched in RHSA-2021:4385.

NVD Description

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

References

CVSS Scores

version 3.1
Expand this section

NVD

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
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Red Hat

5.3 medium
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SUSE

3.7 low