# CVE-2020-16125: gdm3: gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup ifgdm3 can't contact the accountservice service...

CVE-2020-16125 is fixed in 14 products on 1 platform, first by gdm3 3.28.3-0ubuntu18.04.6, released November 2, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-16125
- Priority: Routine
- CVSS: 6.4 (Medium)
- EPSS: 0.0111
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 2, 2020

## Description

gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup ifgdm3 can't contact the accountservice service via dbus in a timely manner;on Ubuntu (and potentially derivatives) this could be be chained with anadditional issue that could allow a local user to create a new privilegedaccount.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gdm RHEL 8 | 1:3.28.3-39.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | gdm3 Ubuntu 18.04.6 LTS (bionic) | 3.28.3-0ubuntu18.04.6 | [gdm3 3.28.3-0ubuntu18.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gdm3-3.28.3-0ubuntu18.04.6.md) | Nov 2, 2020 |
| Linux | gdm3 Ubuntu 20.04 LTS (focal) | 3.36.3-0ubuntu0.20.04.2 | [gdm3 3.36.3-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gdm3-3.36.3-0ubuntu0.20.04.2.md) | Nov 2, 2020 |
| Linux | gdm3 Ubuntu 24.10 (oracular) | 3.38.1-2ubuntu1.1 | [gdm3 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-gdm3-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | gdm3 Ubuntu 25.04 (plucky) | 3.38.1-2ubuntu1.1 | [gdm3 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-gdm3-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | gir1.2-gdm-1.0 Ubuntu 18.04.6 LTS (bionic) | 3.28.3-0ubuntu18.04.6 | [gir1.2-gdm-1.0 3.28.3-0ubuntu18.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-gdm-1.0-3.28.3-0ubuntu18.04.6.md) | Nov 2, 2020 |
| Linux | gir1.2-gdm-1.0 Ubuntu 20.04 LTS (focal) | 3.36.3-0ubuntu0.20.04.2 | [gir1.2-gdm-1.0 3.36.3-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gir1.2-gdm-1.0-3.36.3-0ubuntu0.20.04.2.md) | Nov 2, 2020 |
| Linux | gir1.2-gdm-1.0 Ubuntu 24.10 (oracular) | 3.38.1-2ubuntu1.1 | [gir1.2-gdm-1.0 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-gir1.2-gdm-1.0-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | gir1.2-gdm-1.0 Ubuntu 25.04 (plucky) | 3.38.1-2ubuntu1.1 | [gir1.2-gdm-1.0 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-gir1.2-gdm-1.0-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | glib2 RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | glib2-devel RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | glib2-doc RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | glib2-fam RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | glib2-static RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | glib2-tests RHEL 8 | 0:2.56.4-9.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | libgdm1 Ubuntu 18.04.6 LTS (bionic) | 3.28.3-0ubuntu18.04.6 | [libgdm1 3.28.3-0ubuntu18.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgdm1-3.28.3-0ubuntu18.04.6.md) | Nov 2, 2020 |
| Linux | libgdm1 Ubuntu 20.04 LTS (focal) | 3.36.3-0ubuntu0.20.04.2 | [libgdm1 3.36.3-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgdm1-3.36.3-0ubuntu0.20.04.2.md) | Nov 2, 2020 |
| Linux | libgdm1 Ubuntu 24.10 (oracular) | 3.38.1-2ubuntu1.1 | [libgdm1 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libgdm1-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | libgdm1 Ubuntu 25.04 (plucky) | 3.38.1-2ubuntu1.1 | [libgdm1 3.38.1-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libgdm1-3.38.1-2ubuntu1.1.md) | Nov 3, 2020 |
| Linux | webkit2gtk3 RHEL 8 | 0:2.30.4-1.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | webkit2gtk3-devel RHEL 8 | 0:2.30.4-1.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | webkit2gtk3-jsc RHEL 8 | 0:2.30.4-1.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |
| Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.30.4-1.el8 | [RHSA-2021:1586](https://patchblox.com/security/data/fix/linux/rhsa-2021-1586.md) | May 18, 2021 |

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