CVE-2020-17489: canonical ubuntu_linux Insufficiently Protected Credentials
Vulnerability summary
CVE-2020-17489 is a medium (CVSS 4.3) Insufficiently Protected Credentials vulnerability in canonical ubuntu_linux. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45.1% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 11-08-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.)
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (gitlab.gnome.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Opensuse3 products
- leapEOL15.2
- gnome-settings-daemon&distro=openSUSE Leap 15.2< 3.34.2+0-lp152.3.3.1
- gnome-shell&distro=openSUSE Leap 15.2< 3.34.5-lp152.2.9.1
Redhat3 products
- gnome-shell< 0:3.32.2-44.el8
- gnome-shell-debuginfo< 0:3.32.2-44.el8
- gnome-shell-debugsource< 0:3.32.2-44.el8
Suse3 products
- gnome-settings-daemon&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP2< 3.34.2+0-4.3.1
- gnome-shell&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP2< 3.34.5-3.13.1
- gnome-shell&distro=SUSE Linux Enterprise Workstation Extension 15 SP2< 3.34.5-3.13.1
Debian2 products
- gnome-shell< 3.36.5-1 | < 3.22.3-3+deb9u1
- debian_linuxEOL9.0
Canonical1 product
- ubuntu_linuxEOL20.04
Gnome1 product
- gnome-shell≤ 3.36.4
Mageia1 product
- gnome-shell< 3.32.1-2.2.mga7
Ubuntu1 product
- gnome-shell< 3.36.4-1ubuntu1~20.04.2
8 vendors · 15 products
References
27 links- lists.debian.org/debian-lts-announce/2020/09/msg00014.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-11/msg00028.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
Show all 27 references
- lists.opensuse.org/archives/…Advisory