Fedora 40 update for libreswan



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-2357
CWE-ID CWE-388
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

libreswan
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Error Handling

EUVDB-ID: #VU87342

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-2357

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect handling of a missing PreSharedKey when  a connection is configured to use reSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup sing the auto= keyword, it can cause repeated crashes leading to a denial of service.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 40

libreswan: before 4.14-1.fc40

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2024-92f0c71a01


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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