Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2020.3897
gdm3 security update
6 November 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: gdm3
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-16125
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2020/11/msg00008.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running gdm3 check for an updated version of the software for their
operating system.
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Debian LTS Advisory DLA-2434-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
November 05, 2020 https://wiki.debian.org/LTS
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Package : gdm3
Version : 3.22.3-3+deb9u3
CVE ID : CVE-2020-16125
It was discovered that there was an issue in the GNOME Display
Manager where not detecting any users may make GDM launch initial
system setup and thereby permitting the creation of new users with
sudo capabilities.
For Debian 9 "Stretch", this problem has been fixed in version
3.22.3-3+deb9u3.
We recommend that you upgrade your gdm3 packages.
For the detailed security status of gdm3 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/gdm3
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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