Input validation error in libssh

#VU75741 Input validation error in libssh

Published: 2023-05-04

Vulnerability identifier: #VU75741

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1667

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libssh
Universal components / Libraries / Libraries used by multiple products

Vendor: libssh

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to multiple errors in kex implementation, related to kex guessing algorithm. A remote attacker can bypass implemented security restrictions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libssh: 0.9.0 - 0.10.4

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.

Latest bulletins with this vulnerability

Multiple vulnerabilities in IBM Power Hardware Management Console (HMC)

Multiple vulnerabilities in Netcool Operations Insight

Multiple vulnerabilities in Red Hat OpenShift GitOps

Multiple vulnerabilities in Service Telemetry Framework 1.5

SUSE update for libssh

Multiple vulnerabilities in IBM Cloud Pak for Watson AIOps

Red Hat Enterprise Linux 8.6 Extended Update Support update for libssh

SUSE update for libssh