Detections
Analytics

Alpine: multiple libssh packages: security update to 0.7.6-r3

medium Tenable Cloud Security Plugin ID 405310

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

 - A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES
 ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully
 initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat
 from this vulnerability is system availability. (CVE-2020-1730)

 - libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
 (CVE-2020-16135)

See Also

https://security.alpinelinux.org/vuln/CVE-2020-16135

https://security.alpinelinux.org/vuln/CVE-2020-1730

Plugin Details

Severity: Medium

ID: 405310

Version: Revision 1.25

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-1730

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

CVSS Score Source: CVE-2020-16135

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 4/13/2020

Reference Information

CVE: CVE-2020-16135, CVE-2020-1730

IAVA: 2020-A-0203