OpenShift Container Platform 4.6 update for go

1) Incorrect calculation

EUVDB-ID: #VU50047

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3114

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to incorrect calculation performed by the application in "crypto/elliptic/p224.go". A remote attacker can generate incorrect outputs, related to an underflow of the lowest limb during the final complete reduction in the P-224 field.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

openshift-kuryr (Red Hat package): 4.6.0-202012042155.p0.git.2216.8a6f6a5.el8 - 4.6.0-202103192141.p0.git.2234.cba9525.el8

cri-o (Red Hat package): 1.19.1-2.rhaos4.6.git2af9ecf.el8 - 1.19.1-7.rhaos4.6.git6377f68.el7

ignition (Red Hat package): 0.32.0-2.git5941fc0.el8

Red Hat OpenShift Container Platform: before 4.6.29

External links

http://access.redhat.com/errata/RHBA-2021:1522

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.