Brocade Fabric OS update for OpenSSL



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-0732
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Brocade Fabric OS
Operating systems & Components / Operating system

Vendor Brocade

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU13325

Risk: Low

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:Clear]

CVE-ID: CVE-2018-0732

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to improper handling of large prime values by the affected software during key agreement operations in a Transport Layer Security (TLS) handshake using an Ephemeral Diffie-Hellman (DHE) based cipher suite. A remote attacker can send a large prime value from a malicious OpenSSL server to a targeted OpenSSL client and cause the client to stop responding while generating a key for the prime value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Brocade Fabric OS: before 7.4.2j, 8.2.0 CBN5, 8.2.3c, 7.4.2j

CPE2.3 External links

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-627


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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