Insufficiently Protected Credentials The advisory has been revoked - it doesn't affect any version of package gnome-shell (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-GNOMESHELL-598730
- published12 Aug 2020
- disclosed11 Aug 2020
Introduced: 11 Aug 2020
CVE-2020-17489 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gnome-shell package and not the gnome-shell package as distributed by Ubuntu.
An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. When logging out of an account, the password box from the login dialog reappears with the password still visible. If the user had decided to have the password shown in cleartext at login time, it is then visible for a brief moment upon a logout. (If the password were never shown in cleartext, only the password length is revealed.)
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-17489
- https://security-tracker.debian.org/tracker/CVE-2020-17489
- https://security.gentoo.org/glsa/202009-08
- https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2997
- https://lists.debian.org/debian-lts-announce/2020/09/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00028.html
- https://usn.ubuntu.com/4464-1/