SUSE update for strongswan

1) State Issues

EUVDB-ID: #VU59994

Risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45079

CWE-ID: CWE-371 - State Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper handling of EAP-Success messages. A remote attacker can send a specially crafted (early) EAP-Success message to the affected system and bypass authentication or perform a denial of service attack.

Mitigation

Update the affected package strongswan to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Realtime Extension: 15-SP2

SUSE Linux Enterprise Server: 15-SP2-BCL - 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP2-ESPOS - 15-SP4

SUSE Enterprise Storage: 7.1

SUSE Linux Enterprise Workstation Extension: 15-SP3 - 15-SP4

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3 - 15-SP4

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Retail Branch Server: 4.1

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP2

SUSE Linux Enterprise Module for Basesystem: 15-SP3 - 15-SP4

SUSE Linux Enterprise Desktop: 15-SP3 - 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP3 - 15-SP4

strongswan-nm-debuginfo: before 5.8.2-11.24.1

strongswan-nm: before 5.8.2-11.24.1

strongswan-doc: before 5.8.2-11.24.1

strongswan-libs0-debuginfo: before 5.8.2-11.24.1

strongswan-libs0: before 5.8.2-11.24.1

strongswan-ipsec-debuginfo: before 5.8.2-11.24.1

strongswan-ipsec: before 5.8.2-11.24.1

strongswan-hmac: before 5.8.2-11.24.1

strongswan-debugsource: before 5.8.2-11.24.1

strongswan-debuginfo: before 5.8.2-11.24.1

strongswan: before 5.8.2-11.24.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220492-1/

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.