Debian dla-3899 : python-asyncssh-doc - security update

medium Nessus Plugin ID 207872

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3899 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3899-1 [email protected] https://www.debian.org/lts/security/ Daniel Leidert September 27, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : python-asyncssh Version : 2.5.0-0.1+deb11u1 CVE ID : CVE-2023-46445 CVE-2023-46446 CVE-2023-48795 Debian Bug : 1055999 1056000 1059007

AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python 3.4+ asyncio framework. It has been discovered that it is vulnerable to

CVE-2023-46445

A vulnerability has been discovered that allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack (aka Rogue Extension Negotiation).

CVE-2023-46446

A vulnerability has been discovered that allows attackers to control the remote end of an SSH client session via packet injection/removal and shell emulation (aka Rogue Session attack).

CVE-2023-48795

A vulnerability has been discovered allows remote attackers to bypass integrity checks, and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled (aka Terrapin attack).

For Debian 11 bullseye, these problems have been fixed in version 2.5.0-0.1+deb11u1.

We recommend that you upgrade your python-asyncssh packages.

For the detailed security status of python-asyncssh please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-asyncssh

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Attachment:
signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the python-asyncssh-doc packages.

See Also

http://www.nessus.org/u?1c055cfb

https://security-tracker.debian.org/tracker/CVE-2023-46445

https://security-tracker.debian.org/tracker/CVE-2023-46446

https://security-tracker.debian.org/tracker/CVE-2023-48795

https://packages.debian.org/source/bullseye/python-asyncssh

Plugin Details

Severity: Medium

ID: 207872

File Name: debian_DLA-3899.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/27/2024

Updated: 9/27/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2023-46446

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:python-asyncssh-doc, p-cpe:/a:debian:debian_linux:python3-asyncssh

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/27/2024

Vulnerability Publication Date: 11/9/2023

Reference Information

CVE: CVE-2023-46445, CVE-2023-46446, CVE-2023-48795