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Use After Free Affecting gdm3 package, versions <3.28.2-4

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
7.8 high
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SUSE
7 high
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Red Hat
7.3 high

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  • Snyk ID SNYK-DEBIAN10-GDM3-353899
  • published 14 Aug 2018
  • disclosed 14 Aug 2018
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Introduced: 14 Aug 2018

CVE-2018-14424 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:10 gdm3 to version 3.28.2-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gdm3 package and not the gdm3 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution.