SUSE update for python-paramiko



| Updated: 2025-01-31
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-48795
CWE-ID CWE-326
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
SUSE Linux Enterprise Server 15 SP4 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing LTSS 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing ESPOS 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Desktop 15 SP4 LTSS
Operating systems & Components / Operating system

Python 3 Module
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP Applications 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Desktop 15
Operating systems & Components / Operating system

openSUSE Leap
Operating systems & Components / Operating system

python-paramiko-doc
Operating systems & Components / Operating system package or component

python311-paramiko
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Inadequate encryption strength

EUVDB-ID: #VU84537

Risk: Low

CVSSv4.0: 2.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-48795

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to incorrect implementation of the SSH Binary Packet Protocol (BPP), which mishandles the handshake phase and the use of sequence numbers. A remote attacker can perform MitM attack and delete the SSH2_MSG_EXT_INFO message sent before authentication starts, allowing the attacker to disable a subset of the keystroke timing obfuscation features introduced in OpenSSH 9.5.

The vulnerability was dubbed "Terrapin attack" and it affects both client and server implementations.

Mitigation

Update the affected package python-paramiko to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server 15 SP4 LTSS: 15-SP4

SUSE Linux Enterprise High Performance Computing LTSS 15: SP4

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4

SUSE Linux Enterprise Desktop 15 SP4 LTSS: 15-SP4

Python 3 Module: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP5

openSUSE Leap: 15.4 - 15.5

python-paramiko-doc: before 3.4.0-150400.13.6.1

python311-paramiko: before 3.4.0-150400.13.6.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2024/suse-su-20240035-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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