SUSE update for cosign

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU67910

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-2022-36056

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

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

The vulnerability exists due to improper verification of signature when processing artifacts. A remote attacker can supply a specially crafted artifact and bypass the implemented blob verification process.

Mitigation

Update the affected package cosign to the latest version.

Vulnerable software versions

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Module for Basesystem: 15-SP4

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

cosign: before 1.12.0-150400.3.6.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223486-1/

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.