vulnerability
Ubuntu: USN-6640-1 (CVE-2023-4641): shadow vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:S/C:C/I:N/A:N) | Dec 27, 2023 | Feb 16, 2024 | Apr 16, 2026 |
Severity
4
CVSS
(AV:L/AC:M/Au:S/C:C/I:N/A:N)
Published
Dec 27, 2023
Added
Feb 16, 2024
Modified
Apr 16, 2026
Description
A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.
Solutions
ubuntu-pro-upgrade-loginubuntu-pro-upgrade-passwdubuntu-pro-upgrade-uidmapubuntu-upgrade-libsubid-devubuntu-upgrade-libsubid4ubuntu-upgrade-loginubuntu-upgrade-passwdubuntu-upgrade-uidmap
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.