CVE-2024-39894
openssh: Logic error in ObscureKeystrokeTiming
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 2, 2024
Updated · October 22, 2026
Description
A flaw was found in OpenSSH. A logic error in the SSH ObscureKeystrokeTiming feature (on by default) rendered this feature ineffective. A passive observer could still detect which network packets contained real keystrokes when the countermeasure was active because fake and real keystroke packets were being sent unconditionally.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE-203 · Observable Discrepancy