openEuler update for strongswan



Published: 2022-02-11
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-45079
CWE-ID CWE-371
Exploitation vector Network
Public exploit N/A
Vulnerable software
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openEuler
Operating systems & Components / Operating system

strongswan-help
Operating systems & Components / Operating system package or component

strongswan-debuginfo
Operating systems & Components / Operating system package or component

strongswan-debugsource
Operating systems & Components / Operating system package or component

strongswan
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one high risk vulnerability.

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

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

strongswan-help: before 5.7.2-8

strongswan-debuginfo: before 5.7.2-8

strongswan-debugsource: before 5.7.2-8

strongswan: before 5.7.2-8

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1525


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.



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