Denial of service in FreeBSD



Published: 2022-06-17
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-32264
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		FreeBSD
Operating systems & Components / Operating system

Vendor FreeBSD Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU64479

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32264

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper handling of TSopt on TCP connections. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FreeBSD: 1.0 - 6.4

External links

http://jvn.jp/en/jp/JVN20930118/index.html


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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