OpenShift Serverless Client update for golang

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU62039

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-27191

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in golang.org/x/crypto/ssh before 0.0.0-20220314234659-1baeb1ce4c0b, as used in Go programming language. A remote attacker can crash a server in certain circumstances involving AddHostKey.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenShift Serverless Client: before 1.26.0

openshift-serverless-clients (Red Hat package): before 1.5.0-3.el8

CPE2.3

• cpe:2.3:a:red_hat:openshift_serverless_client:*:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:openshift-serverless-clients_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2022:8932

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.