Detections
Analytics

Azure Linux 3.0 Security Update: openssh (CVE-2024-39894)

high Nessus Plugin ID 295280

Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of openssh installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-39894 advisory.

 - OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur. (CVE-2024-39894)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2024-39894

Plugin Details

Severity: High

ID: 295280

File Name: azure_linux_CVE-2024-39894.nasl

Version: 1.1

Type: local

Published: 1/22/2026

Updated: 1/22/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2024-39894

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:openssh-clients, p-cpe:/a:microsoft:azure_linux:pam_ssh_agent_auth, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:openssh-debuginfo, p-cpe:/a:microsoft:azure_linux:openssh, p-cpe:/a:microsoft:azure_linux:openssh-server

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AzureLinux/release, Host/AzureLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/10/2024

Vulnerability Publication Date: 7/2/2024

Reference Information

CVE: CVE-2024-39894

IAVA: 2024-A-0375-S