#VU27513 Resource exhaustion in Netty - CVE-2020-11612 

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Main Vulnerability Database Vulnerabilities #VU27513

#VU27513 Resource exhaustion in Netty - CVE-2020-11612

Published: May 4, 2020


Vulnerability identifier: #VU27513
Vulnerability risk: Medium
CVSSv4.0: 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:Green
CVE-ID: CVE-2020-11612
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Netty
Software vendor:
Netty project

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources within ZlibDecoders in Netty while decoding a ZlibEncoded byte stream. A remote attacker can trigger resource exhaustion by passing an overly large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.


Remediation

Install updates from vendor's website.

External links