CVE-2018-20839
systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.
- Score
- CVSS 3.1 4.3 Medium
- Status
- Analyzed - cve@mitre.org
- Published
- 2019-05-17
- Last modified
- 2024-08-05
Affected products
- Cn1610 Firmware (Netapp)
- Snapprotect (Netapp)
- Solidfire & Hci Management Node (Netapp)
- Systemd (Systemd Project)
References
- http://www.securityfocus.com/bid/108389
- https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993
- https://github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322f
- https://github.com/systemd/systemd/pull/12378
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org…
- https://security.netapp.com/advisory/ntap-20190530-0002/