Fedora EPEL 9 update for strongswan



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-40617
CWE-ID CWE-295
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

strongswan
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Certificate Validation

EUVDB-ID: #VU67813

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40617

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

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

The vulnerability exists due to an error within the revocation plugin, which uses potentially untrusted OCSP URIs and CRL distribution points (CDP) in certificates. A remote attacker can initiate the IKE_SAs and send crafted certificates that contain URIs pointing to servers under their control. As a result, a remote attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 9

strongswan: before 5.9.8-1.el9

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-14a54aad76


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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