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CVE-2020-11612

Published: 07 April 2020

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
netty
Launchpad, Ubuntu, Debian
Upstream
Released (1:4.1.48-1)
Ubuntu 21.10 (Impish Indri) Not vulnerable
(1:4.1.48-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1:4.1.48-1)
Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:4.1.7-4ubuntu0.1)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end of standard support, was needs-triage)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage