SUSE update for keylime

1) Error Handling

EUVDB-ID: #VU69339

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3500

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to improper error handling when treating system level failures, such as network driver crash, causing the verifier component to quit and not recover. The verifier's state machine remains in "verified" state and the associated database is no longer updated for this agent.

Mitigation

Update the affected package keylime 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

keylime-logrotate: before 6.3.2-150400.4.14.1

python3-keylime: before 6.3.2-150400.4.14.1

keylime-verifier: before 6.3.2-150400.4.14.1

keylime-tpm_cert_store: before 6.3.2-150400.4.14.1

keylime-registrar: before 6.3.2-150400.4.14.1

keylime-firewalld: before 6.3.2-150400.4.14.1

keylime-config: before 6.3.2-150400.4.14.1

keylime-agent: before 6.3.2-150400.4.14.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224204-1/

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.