CVE-2020-8907

gce-compute-image-packages: A vulnerability in Google Cloud Platform's guest-oslogin versions between20190304 and 20200507 allows a user that is...

CVE-2020-8907 is fixed in 5 products on 1 platform, first by gce-compute-image-packages 20190801-0ubuntu1~18.04.1, released June 22, 2020. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0031
23rd percentile

A vulnerability in Google Cloud Platform's guest-oslogin versions between20190304 and 20200507 allows a user that is only granted the role"roles/compute.osLogin" to escalate privileges to root. Using theirmembership to the "docker" group, an attacker with this role is able to rundocker and mount the host OS. Within docker, it is possible to modify thehost OS filesystem and modify /etc/groups to gain administrativeprivileges. All images created after 2020-May-07 (20200507) are fixed, andif you cannot update, we recommend you edit /etc/group/security.conf andremove the "docker" user from the OS Login entry.

Where it's fixed

ProductFixed inFixReleased
Linux
gce-compute-image-packages · Ubuntu 18.04.6 LTS (bionic) 20190801-0ubuntu1~18.04.1 gce-compute-image-packages 20190801-0ubuntu1~18.04.1 Jun 22, 2020
gce-compute-image-packages · Ubuntu 20.04 LTS (focal) 20190801-0ubuntu4.1 gce-compute-image-packages 20190801-0ubuntu4.1 Jun 22, 2020
gce-compute-image-packages · Ubuntu 24.10 (oracular) 20190801-0ubuntu5 gce-compute-image-packages 20190801-0ubuntu5 Jan 16, 2026
gce-compute-image-packages · Ubuntu 25.04 (plucky) 20190801-0ubuntu5 gce-compute-image-packages 20190801-0ubuntu5 Jan 16, 2026
google-compute-engine · Ubuntu 24.10 (oracular) 20190801-0ubuntu5 google-compute-engine 20190801-0ubuntu5 Jan 16, 2026
google-compute-engine · Ubuntu 25.04 (plucky) 20190801-0ubuntu5 google-compute-engine 20190801-0ubuntu5 Jan 16, 2026
google-compute-engine-oslogin · Ubuntu 18.04.6 LTS (bionic) 20190801-0ubuntu1~18.04.1 google-compute-engine-oslogin 20190801-0ubuntu1~18.04.1 Jun 22, 2020
google-compute-engine-oslogin · Ubuntu 20.04 LTS (focal) 20190801-0ubuntu4.1 google-compute-engine-oslogin 20190801-0ubuntu4.1 Jun 22, 2020
python-google-compute-engine · Ubuntu 18.04.6 LTS (bionic) 20190801-0ubuntu1~18.04.1 python-google-compute-engine 20190801-0ubuntu1~18.04.1 Jun 22, 2020
python3-google-compute-engine · Ubuntu 18.04.6 LTS (bionic) 20190801-0ubuntu1~18.04.1 python3-google-compute-engine 20190801-0ubuntu1~18.04.1 Jun 22, 2020
python3-google-compute-engine · Ubuntu 20.04 LTS (focal) 20190801-0ubuntu4.1 python3-google-compute-engine 20190801-0ubuntu4.1 Jun 22, 2020

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