Vulnerability in GNOME Gnome-Shell
CVE-2020-17489
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.)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (44.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- GNOME Gnome-Shell
- Canonical Ubuntu Linux — versions 20.04
- Debian Linux — versions 9.0
- openSUSE Leap — versions 15.2
Weakness classification (CWE)
References
- gitlab.gnome.org/GNOME/gnome-shell/-/issues/2997 (Exploit, Patch, Vendor Advisory)
- usn.ubuntu.com/4464-1/ (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202009-08 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/09/msg00014.html (mailing-list, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00028.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-17489?
- CVE-2020-17489 is a medium-severity vulnerability in GNOME Gnome-Shell, classified under Insufficiently Protected Credentials. CVSS score: 4.3/10. Published 2020-08-11.
- How severe is CVE-2020-17489?
- Medium severity. CVSS v3 base score is 4.3 out of 10.