Vulnerability identifier: #VU41436

Vulnerability 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-2014-3488

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Netty
Universal components / Libraries / Libraries used by multiple products

Vendor: Netty project

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The SslHandler in Netty before 3.9.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted SSLv2Hello message.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Netty: 3.6.0 - 3.9.1

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External links
http://netty.io/news/2014/06/11/3-9-2-Final.html
http://secunia.com/advisories/59196
http://github.com/netty/netty/commit/2fa9400a59d0563a66908aba55c41e7285a04994
http://github.com/netty/netty/issues/2562
http://lists.debian.org/debian-lts-announce/2020/02/msg00018.html

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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.