Vulnerability identifier: #VU41720

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-2014-0193

CWE-ID: CWE-399

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.

WebSocket08FrameDecoder in Netty 3.6.x before 3.6.9, 3.7.x before 3.7.1, 3.8.x before 3.8.2, 3.9.x before 3.9.1, and 4.0.x before 4.0.19 allows remote attackers to cause a denial of service (memory consumption) via a TextWebSocketFrame followed by a long stream of ContinuationWebSocketFrames.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Netty: 3.6.0 - 4.0.18

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External links
http://netty.io/news/2014/04/30/release-day.html
http://rhn.redhat.com/errata/RHSA-2014-1019.html
http://rhn.redhat.com/errata/RHSA-2014-1020.html
http://rhn.redhat.com/errata/RHSA-2014-1021.html
http://rhn.redhat.com/errata/RHSA-2014-1351.html
http://rhn.redhat.com/errata/RHSA-2015-0675.html
http://rhn.redhat.com/errata/RHSA-2015-0720.html
http://rhn.redhat.com/errata/RHSA-2015-0765.html
http://secunia.com/advisories/58280
http://secunia.com/advisories/59290
http://www.securityfocus.com/bid/67182
http://github.com/netty/netty/issues/2441
http://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8@%3Ccommits.pulsar.apache.org%3E
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.